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49 vulnerabilities found for next.js by vercel
CVE-2026-64649 (GCVE-0-2026-64649)
Vulnerability from cvelistv5
Published
2026-07-27 19:27
Modified
2026-07-28 14:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Summary
Next.js is a React framework for building full-stack web applications. In versions 14.1.1 through 15.5.20 and 16.0.0 through 16.2.10, when a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host (Server-Side Request Forgery). This requires the attacker's request to control Host-associated headers. In some configurations, it's also possible to obtain internal values that weaken middleware/proxy authorization. Applications that use Server Actions are affected when the incoming host header is not fixed to a trusted value. This typically occurs on custom servers, or on deployments not behind a proxy that pins the host. Managed hosting pins the host upstream and is not affected; next start and standalone output do the same from version 14.2 onward. This issue has been fixed in versions 15.5.21 and 16.2.11.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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{
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{
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}
],
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"discovery": "UNKNOWN"
},
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CVE-2026-64648 (GCVE-0-2026-64648)
Vulnerability from cvelistv5
Published
2026-07-27 19:20
Modified
2026-07-28 14:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-524 - Use of Cache Containing Sensitive Information
Summary
Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, a server-side fetch with a request body may return a cached response body from a different request to the same URL but different body. Confidential data in the POST's response body would then leak to unauthorized requests. Though the request itself will not be deduped. This only applies to fetch calls with a request that has a different init than the one passed to fetch. A safe request would be: fetch(new Request(init), init). An unsafe request would be: fetch(new Request(init), aDifferentInit). This issue has been fixed in versions 15.5.21 and 16.2.11.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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}
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"tags": [
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CVE-2026-64647 (GCVE-0-2026-64647)
Vulnerability from cvelistv5
Published
2026-07-27 19:11
Modified
2026-07-27 19:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-116 - Improper Encoding or Escaping of Output
Summary
Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, a server-side fetch with a request body may return a cached response body from a different request to the same URL but different body. Confidential data in the POST's response body would then leak to unauthorized requests. Though the request itself will not be deduped. This is only an issue when receiving request bodies with a content type charset other than UTF-8. For example, the UTF-16 byte sequences for 삃삃 and 섄섄 in the request body would share the same cache. This issue has been fixed in versions 15.5.21 and 16.2.11.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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}
],
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CVE-2026-64646 (GCVE-0-2026-64646)
Vulnerability from cvelistv5
Published
2026-07-27 18:54
Modified
2026-07-27 20:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive memory consumption if that Server Actions uses the Edge runtime. This issue has been fixed in versions 15.5.21 and 16.2.11.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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},
{
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"tags": [
"x_refsource_MISC"
],
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}
],
"source": {
"advisory": "GHSA-4c39-4ccg-62r3",
"discovery": "UNKNOWN"
},
"title": "Next.js: Unbounded Server Action payload in Edge runtime"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-64646",
"datePublished": "2026-07-27T18:54:59.466Z",
"dateReserved": "2026-07-20T17:11:30.895Z",
"dateUpdated": "2026-07-27T20:22:18.086Z",
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}
CVE-2026-64644 (GCVE-0-2026-64644)
Vulnerability from cvelistv5
Published
2026-07-27 17:54
Modified
2026-07-27 18:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Summary
Next.js is a React framework for building full-stack web applications. In versions 15.5.0 through 15.5.20 and 16.0.0 through 16.2.10, when self-hosting Next.js with the default image loader, the Image Optimization API can optimize remotely hosted images if configured (not enabled by default). If those images contain malicious content, they can cause CPU exhaustion in /_next/image endpoints.Only config.images.remotePatterns is affected, and just the patterns in that array, whereas config.images.unoptimized: true, config.images.loader: 'custom', and Vercel are not impacted. This issue has been fixed in versions 15.5.21 and 16.2.11.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-64644",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-27T18:35:34.937230Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-27T18:35:41.443Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"product": "next.js",
"vendor": "vercel",
"versions": [
{
"status": "affected",
"version": "\u003e= 15.5.0, \u003c 15.5.21"
},
{
"status": "affected",
"version": "\u003e= 16.0.0, \u003c 16.2.11"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Next.js is a React framework for building full-stack web applications. In versions 15.5.0 through 15.5.20 and 16.0.0 through 16.2.10, when self-hosting Next.js with the default image loader, the Image Optimization API can optimize remotely hosted images if configured (not enabled by default). If those images contain malicious content, they can cause CPU exhaustion in /_next/image endpoints.Only config.images.remotePatterns is affected, and just the patterns in that array, whereas config.images.unoptimized: true, config.images.loader: \u0027custom\u0027, and Vercel are not impacted. This issue has been fixed in versions 15.5.21 and 16.2.11."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
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}
}
],
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{
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{
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"description": "CWE-407: Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-27T17:54:52.530Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vercel/next.js/security/advisories/GHSA-q8wf-6r8g-63ch",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-q8wf-6r8g-63ch"
},
{
"name": "https://github.com/vercel/next.js/pull/96006",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/pull/96006"
},
{
"name": "https://github.com/vercel/next.js/commit/93cb90891402fa4c47798d03cb9e05c13233766c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/commit/93cb90891402fa4c47798d03cb9e05c13233766c"
},
{
"name": "https://github.com/vercel/next.js/releases/tag/v15.5.21",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/releases/tag/v15.5.21"
},
{
"name": "https://github.com/vercel/next.js/releases/tag/v16.2.11",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/releases/tag/v16.2.11"
}
],
"source": {
"advisory": "GHSA-q8wf-6r8g-63ch",
"discovery": "UNKNOWN"
},
"title": "Next.js: Denial of Service in the Image Optimization API using SVGs"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-64644",
"datePublished": "2026-07-27T17:54:52.530Z",
"dateReserved": "2026-07-20T17:11:30.895Z",
"dateUpdated": "2026-07-27T18:35:41.443Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-64643 (GCVE-0-2026-64643)
Vulnerability from cvelistv5
Published
2026-07-27 17:48
Modified
2026-07-27 18:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-201 - Insertion of Sensitive Information Into Sent Data
Summary
Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, Next.js applications using App Router, Server Actions (use server) or use cache endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used. Server Action IDs can be disclosed to unauthenticated users via publicly served client artifacts (for example, static chunks containing action references). Affected users are applications using App Router and Server Actions. By itself, this disclosure is typically a recon/enumeration primitive; however, it can increase risk when combined with other weaknesses. This issue has been fixed in versions 15.5.21 and 16.2.11.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-64643",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-27T18:20:57.639287Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-27T18:21:55.549Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "next.js",
"vendor": "vercel",
"versions": [
{
"status": "affected",
"version": "\u003e= 13.0.0, \u003c 15.5.21"
},
{
"status": "affected",
"version": "\u003e= 16.0.0, \u003c 16.2.11"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, Next.js applications using App Router, Server Actions (use server) or use cache endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used. Server Action IDs can be disclosed to unauthenticated users via publicly served client artifacts (for example, static chunks containing action references). Affected users are applications using App Router and Server Actions. By itself, this disclosure is typically a recon/enumeration primitive; however, it can increase risk when combined with other weaknesses. This issue has been fixed in versions 15.5.21 and 16.2.11."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
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{
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"description": "CWE-201: Insertion of Sensitive Information Into Sent Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-27T17:48:17.575Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vercel/next.js/security/advisories/GHSA-955p-x3mx-jcvp",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-955p-x3mx-jcvp"
},
{
"name": "https://github.com/vercel/next.js/commit/1b0c3ae912a3ad925c60065cc8d55b070fa8bcd3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/commit/1b0c3ae912a3ad925c60065cc8d55b070fa8bcd3"
},
{
"name": "https://github.com/vercel/next.js/commit/ff12a6124e1504f17b62de948b8a553fdecaef7b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/commit/ff12a6124e1504f17b62de948b8a553fdecaef7b"
},
{
"name": "https://github.com/vercel/next.js/releases/tag/v15.5.21",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/releases/tag/v15.5.21"
},
{
"name": "https://github.com/vercel/next.js/releases/tag/v16.2.11",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/releases/tag/v16.2.11"
}
],
"source": {
"advisory": "GHSA-955p-x3mx-jcvp",
"discovery": "UNKNOWN"
},
"title": "Next.js: Unauthenticated Disclosure of Internal Server Function endpoints"
}
},
"cveMetadata": {
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-07-20T17:11:30.895Z",
"dateUpdated": "2026-07-27T18:21:55.549Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-64642 (GCVE-0-2026-64642)
Vulnerability from cvelistv5
Published
2026-07-27 17:45
Modified
2026-07-28 15:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-285 - Improper Authorization
Summary
Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. This issue has been fixed in version 16.2.11.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-64642",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-28T15:07:35.483250Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-28T15:20:33.639Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "next.js",
"vendor": "vercel",
"versions": [
{
"status": "affected",
"version": "\u003e= 16.0.0, \u003c 16.2.11"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. This issue has been fixed in version 16.2.11."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
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"vulnIntegrityImpact": "LOW"
}
}
],
"problemTypes": [
{
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"description": "CWE-285: Improper Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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},
"references": [
{
"name": "https://github.com/vercel/next.js/security/advisories/GHSA-6gpp-xcg3-4w24",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-6gpp-xcg3-4w24"
},
{
"name": "https://github.com/vercel/next.js/pull/96014",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/pull/96014"
},
{
"name": "https://github.com/vercel/next.js/commit/6bf4df14508ad6c0cd46af50c6051ee42f2d9151",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/commit/6bf4df14508ad6c0cd46af50c6051ee42f2d9151"
},
{
"name": "https://github.com/vercel/next.js/releases/tag/v16.2.11",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/releases/tag/v16.2.11"
}
],
"source": {
"advisory": "GHSA-6gpp-xcg3-4w24",
"discovery": "UNKNOWN"
},
"title": "Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-64642",
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"dateReserved": "2026-07-20T17:11:30.895Z",
"dateUpdated": "2026-07-28T15:20:33.639Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}
CVE-2026-64641 (GCVE-0-2026-64641)
Vulnerability from cvelistv5
Published
2026-07-27 17:40
Modified
2026-07-27 18:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-834 - Excessive Iteration
Summary
Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive CPU usage blocking processing of further requests in the same process. This issue has been fixed in versions 15.5.21 and 16.2.11.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-64641",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-27T18:54:52.018065Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-27T18:54:59.134Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "next.js",
"vendor": "vercel",
"versions": [
{
"status": "affected",
"version": "\u003e= 13.0.0, \u003c 15.5.21"
},
{
"status": "affected",
"version": "\u003e= 16.0.0, \u003c 16.2.11"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive CPU usage blocking processing of further requests in the same process. This issue has been fixed in versions 15.5.21 and 16.2.11."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
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{
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"type": "CWE"
}
]
}
],
"providerMetadata": {
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"shortName": "GitHub_M"
},
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{
"name": "https://github.com/vercel/next.js/security/advisories/GHSA-m99w-x7hq-7vfj",
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"x_refsource_CONFIRM"
],
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-m99w-x7hq-7vfj"
},
{
"name": "https://github.com/vercel/next.js/pull/96013",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/pull/96013"
},
{
"name": "https://github.com/vercel/next.js/commit/019628571641dec57aaf349ba0c360e3964e6f12",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/commit/019628571641dec57aaf349ba0c360e3964e6f12"
},
{
"name": "https://github.com/vercel/next.js/releases/tag/v15.5.21",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/releases/tag/v15.5.21"
},
{
"name": "https://github.com/vercel/next.js/releases/tag/v16.2.11",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/releases/tag/v16.2.11"
}
],
"source": {
"advisory": "GHSA-m99w-x7hq-7vfj",
"discovery": "UNKNOWN"
},
"title": "Next.js: Denial of Service in App Router using Server Actions"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-64641",
"datePublished": "2026-07-27T17:40:01.137Z",
"dateReserved": "2026-07-20T17:11:30.895Z",
"dateUpdated": "2026-07-27T18:54:59.134Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-64645 (GCVE-0-2026-64645)
Vulnerability from cvelistv5
Published
2026-07-27 17:37
Modified
2026-07-28 14:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, a
rewrites() or redirects() rule that builds its external destination hostname from request-controlled input can be pointed at an arbitrary hostname, regardless of the rule's hostname suffix. For a rewrite, Next.js proxies the request to that arbitrary host and serves the response from the application's origin, leading to Server-Side Request forgery. A redirects() rule configured this way is vulnerable to an Open Redirect. This issue has been fixed in versions 15.5.21 and 16.2.11.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-45109 (GCVE-0-2026-45109)
Vulnerability from cvelistv5
Published
2026-05-13 17:11
Modified
2026-08-13 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Summary
Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.18 and 16.2.6, it was found that the fix addressing CVE-2026-44575 did not apply to middleware.ts with Turbopack. This vulnerability is fixed in 15.5.18 and 16.2.6.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2026-44582 (GCVE-0-2026-44582)
Vulnerability from cvelistv5
Published
2026-05-13 17:08
Modified
2026-05-14 18:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-328 - Use of Weak Hash
Summary
Next.js is a React framework for building full-stack web applications. From 13.4.6 to before 15.5.16 and 16.2.5, React Server Component responses can be vulnerable to cache poisoning in deployments that rely on shared caches with insufficient response partitioning. In affected conditions, collisions in the _rsc cache-busting value can allow an attacker to poison cache entries so users receive the wrong response variant for a given URL. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2026-44581 (GCVE-0-2026-44581)
Vulnerability from cvelistv5
Published
2026-05-13 17:07
Modified
2026-05-18 14:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
Next.js is a React framework for building full-stack web applications. From 13.4.0 to before 15.5.16 and 16.2.5, App Router applications that rely on CSP nonces can be vulnerable to stored cross-site scripting when deployed behind shared caches. In affected versions, malformed nonce values derived from request headers could be reflected into rendered HTML in an unsafe way, allowing an attacker to poison cached responses and cause script execution for later visitors. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2026-44580 (GCVE-0-2026-44580)
Vulnerability from cvelistv5
Published
2026-05-13 17:06
Modified
2026-05-13 18:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
Next.js is a React framework for building full-stack web applications. From 13.0.0 to before 15.5.16 and 16.2.5, applications that use beforeInteractive scripts together with untrusted content can be vulnerable to cross-site scripting. In affected versions, serialized script content was not escaped safely before being embedded into the document, which could allow attacker-controlled input to break out of the intended script context and execute arbitrary JavaScript in a visitor's browser. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2026-44579 (GCVE-0-2026-44579)
Vulnerability from cvelistv5
Published
2026-05-13 17:04
Modified
2026-08-13 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Next.js is a React framework for building full-stack web applications. From to before 15.5.16 and 16.2.5, applications using Partial Prerendering through the Cache Components feature can be vulnerable to connection exhaustion through crafted POST requests to a server action. In affected configurations, a malicious request can trigger a request-body handling deadlock that leaves connections open for an extended period, consuming file descriptors and server capacity until legitimate users are denied service. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2026-44578 (GCVE-0-2026-44578)
Vulnerability from cvelistv5
Published
2026-05-13 17:01
Modified
2026-08-13 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Summary
Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the server to proxy requests to arbitrary internal or external destinations, which may expose internal services or cloud metadata endpoints. Vercel-hosted deployments are not affected. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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Impacted products
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CVE-2026-44577 (GCVE-0-2026-44577)
Vulnerability from cvelistv5
Published
2026-05-13 17:00
Modified
2026-08-13 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Next.js is a React framework for building full-stack web applications. From 10.0.0 to before 15.5.16 and 16.2.5, when self-hosting Next.js with the default image loader, the Image Optimization API fetches local images entirely into memory without enforcing a maximum size limit. An attacker could cause out-of-memory conditions by requesting large local assets from the /_next/image endpoint that match the images.localPatterns configuration (by default, all patterns are allowed). This vulnerability is fixed in 15.5.16 and 16.2.5.
References
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|---|---|---|---|---|---|
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Impacted products
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CVE-2026-44576 (GCVE-0-2026-44576)
Vulnerability from cvelistv5
Published
2026-05-13 16:57
Modified
2026-05-18 13:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-436 - Interpretation Conflict
Summary
Next.js is a React framework for building full-stack web applications. From 14.2.0 to before 15.5.16 and 16.2.5, applications using React Server Components can be vulnerable to cache poisoning when shared caches do not correctly partition response variants. Under affected conditions, an attacker can cause an RSC response to be served from the original URL and poison shared cache entries so later visitors receive component payloads instead of the expected HTML. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
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|---|---|---|---|---|---|
|
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CVE-2026-44574 (GCVE-0-2026-44574)
Vulnerability from cvelistv5
Published
2026-05-13 16:56
Modified
2026-08-13 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Summary
Next.js is a React framework for building full-stack web applications. From 15.4.0 to before 15.5.16 and 16.2.5, applications that rely on middleware to protect dynamic routes can be vulnerable to authorization bypass. In affected deployments, specially crafted query parameters can alter the dynamic route value seen by the page while leaving the visible path unchanged, which can allow protected content to be rendered without passing the expected middleware check. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2026-44575 (GCVE-0-2026-44575)
Vulnerability from cvelistv5
Published
2026-05-13 16:54
Modified
2026-08-13 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Summary
Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.16 and 16.2.5, App Router applications that rely on middleware or proxy-based checks for authorization can allow unauthorized access through transport-specific route variants used for segment prefetching. In affected configurations, specially crafted .rsc and segment-prefetch URLs can resolve to the same page without being matched by the intended middleware rule, which can allow protected content to be reached without the expected authorization check. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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Impacted products
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CVE-2026-44573 (GCVE-0-2026-44573)
Vulnerability from cvelistv5
Published
2026-05-13 16:48
Modified
2026-08-13 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-863 - Incorrect Authorization
Summary
Next.js is a React framework for building full-stack web applications. From 12.2.0 to before 15.5.16 and 16.2.5, Applications using the Pages Router with i18n configured and middleware/proxy-based authorization can allow unauthorized access to protected page data through locale-less /_next/data/<buildId>/<page>.json requests. In affected configurations, middleware does not run for the unprefixed data route, allowing an attacker to retrieve SSR JSON for protected pages without passing the intended authorization checks. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2026-44572 (GCVE-0-2026-44572)
Vulnerability from cvelistv5
Published
2026-05-13 15:57
Modified
2026-05-14 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data
Summary
Next.js is a React framework for building full-stack web applications. From 12.2.0 to before 15.5.16 and 16.2.5, an external client could send a x-nextjs-data header on a normal request to a path handled by middleware that returns a redirect. When that happened, the middleware/proxy could treat the request as a data request and replace the standard Location redirect header with the internal x-nextjs-redirect header. Browsers do not follow x-nextjs-redirect, so the response became an unusable redirect for normal clients. If the application was deployed behind a CDN or reverse proxy that caches 3xx responses without varying on this header, a single attacker request could poison the cached redirect response for the affected path. Subsequent visitors could then receive a cached redirect response without a Location header, causing a denial of service for that redirect path until the cache entry expired or was purged. This vulnerability is fixed in 15.5.16 and 16.2.5.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2026-29057 (GCVE-0-2026-29057)
Vulnerability from cvelistv5
Published
2026-03-18 00:30
Modified
2026-03-18 14:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Summary
Next.js is a React framework for building full-stack web applications. Starting in version 9.5.0 and prior to versions 15.5.13 and 16.1.7, when Next.js rewrites proxy traffic to an external backend, a crafted `DELETE`/`OPTIONS` request using `Transfer-Encoding: chunked` could trigger request boundary disagreement between the proxy and backend. This could allow request smuggling through rewritten routes. An attacker could smuggle a second request to unintended backend routes (for example, internal/admin endpoints), bypassing assumptions that only the configured rewrite destination/path is reachable. This does not impact applications hosted on providers that handle rewrites at the CDN level, such as Vercel. The vulnerability originated in an upstream library vendored by Next.js. It is fixed in Next.js 15.5.13 and 16.1.7 by updating that dependency’s behavior so `content-length: 0` is added only when both `content-length` and `transfer-encoding` are absent, and `transfer-encoding` is no longer removed in that code path. If upgrading is not immediately possible, block chunked `DELETE`/`OPTIONS` requests on rewritten routes at the edge/proxy, and/or enforce authentication/authorization on backend routes.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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CVE-2026-27980 (GCVE-0-2026-27980)
Vulnerability from cvelistv5
Published
2026-03-18 00:23
Modified
2026-03-18 19:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
Next.js is a React framework for building full-stack web applications. Starting in version 10.0.0 and prior to version 16.1.7, the default Next.js image optimization disk cache (`/_next/image`) did not have a configurable upper bound, allowing unbounded cache growth. An attacker could generate many unique image-optimization variants and exhaust disk space, causing denial of service. This is fixed in version 16.1.7 by adding an LRU-backed disk cache with `images.maximumDiskCacheSize`, including eviction of least-recently-used entries when the limit is exceeded. Setting `maximumDiskCacheSize: 0` disables disk caching. If upgrading is not immediately possible, periodically clean `.next/cache/images` and/or reduce variant cardinality (e.g., tighten values for `images.localPatterns`, `images.remotePatterns`, and `images.qualities`).
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2026-27979 (GCVE-0-2026-27979)
Vulnerability from cvelistv5
Published
2026-03-18 00:13
Modified
2026-03-18 19:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and prior to version 16.1.7, a request containing the `next-resume: 1` header (corresponding with a PPR resume request) would buffer request bodies without consistently enforcing `maxPostponedStateSize` in certain setups. The previous mitigation protected minimal-mode deployments, but equivalent non-minimal deployments remained vulnerable to the same unbounded postponed resume-body buffering behavior. In applications using the App Router with Partial Prerendering capability enabled (via `experimental.ppr` or `cacheComponents`), an attacker could send oversized `next-resume` POST payloads that were buffered without consistent size enforcement in non-minimal deployments, causing excessive memory usage and potential denial of service. This is fixed in version 16.1.7 by enforcing size limits across all postponed-body buffering paths and erroring when limits are exceeded. If upgrading is not immediately possible, block requests containing the `next-resume` header, as this is never valid to be sent from an untrusted client.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2026-27978 (GCVE-0-2026-27978)
Vulnerability from cvelistv5
Published
2026-03-17 23:59
Modified
2026-03-18 19:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Summary
Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and prior to version 16.1.7, `origin: null` was treated as a "missing" origin during Server Action CSRF validation. As a result, requests from opaque contexts (such as sandboxed iframes) could bypass origin verification instead of being validated as cross-origin requests. An attacker could induce a victim browser to submit Server Actions from a sandboxed context, potentially executing state-changing actions with victim credentials (CSRF). This is fixed in version 16.1.7 by treating `'null'` as an explicit origin value and enforcing host/origin checks unless `'null'` is explicitly allowlisted in `experimental.serverActions.allowedOrigins`. If upgrading is not immediately possible, add CSRF tokens for sensitive Server Actions, prefer `SameSite=Strict` on sensitive auth cookies, and/or do not allow `'null'` in `serverActions.allowedOrigins` unless intentionally required and additionally protected.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2026-27977 (GCVE-0-2026-27977)
Vulnerability from cvelistv5
Published
2026-03-17 23:56
Modified
2026-03-18 19:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1385 - Missing Origin Validation in WebSockets
Summary
Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and prior to version 16.1.7, in `next dev`, cross-site protection for internal websocket endpoints could treat `Origin: null` as a bypass case even if `allowedDevOrigins` is configured, allowing privacy-sensitive/opaque contexts (for example sandboxed documents) to connect unexpectedly. If a dev server is reachable from attacker-controlled content, an attacker may be able to connect to the HMR websocket channel and interact with dev websocket traffic. This affects development mode only. Apps without a configured `allowedDevOrigins` still allow connections from any origin. The issue is fixed in version 16.1.7 by validating `Origin: null` through the same cross-site origin-allowance checks used for other origins. If upgrading is not immediately possible, do not expose `next dev` to untrusted networks and/or block websocket upgrades to `/_next/webpack-hmr` when `Origin` is `null` at the proxy.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-57752 (GCVE-0-2025-57752)
Vulnerability from cvelistv5
Published
2025-08-29 22:06
Modified
2025-09-02 19:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-524 - Use of Cache Containing Sensitive Information
Summary
Next.js is a React framework for building full-stack web applications. In versions before 14.2.31 and from 15.0.0 to before 15.4.5, Next.js Image Optimization API routes are affected by cache key confusion. When images returned from API routes vary based on request headers (such as Cookie or Authorization), these responses could be incorrectly cached and served to unauthorized users due to a cache key confusion bug. This vulnerability has been fixed in Next.js versions 14.2.31 and 15.4.5. All users are encouraged to upgrade if they use API routes to serve images that depend on request headers and have image optimization enabled.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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CVE-2025-55173 (GCVE-0-2025-55173)
Vulnerability from cvelistv5
Published
2025-08-29 22:00
Modified
2025-09-02 19:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - Improper Input Validation
Summary
Next.js is a React framework for building full-stack web applications. In versions before 14.2.31 and from 15.0.0 to before 15.4.5, Next.js Image Optimization is vulnerable to content injection. The issue allowed attacker-controlled external image sources to trigger file downloads with arbitrary content and filenames under specific configurations. This behavior could be abused for phishing or malicious file delivery. This vulnerability has been fixed in Next.js versions 14.2.31 and 15.4.5.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
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"dataVersion": "5.1"
}
CVE-2025-57822 (GCVE-0-2025-57822)
Vulnerability from cvelistv5
Published
2025-08-29 21:33
Modified
2025-09-02 17:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Summary
Next.js is a React framework for building full-stack web applications. Prior to versions 14.2.32 and 15.4.7, when next() was used without explicitly passing the request object, it could lead to SSRF in self-hosted applications that incorrectly forwarded user-supplied headers. This vulnerability has been fixed in Next.js versions 14.2.32 and 15.4.7. All users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the next() function.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-57822",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-09-02T17:26:15.763023Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-09-02T17:26:25.016Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "next.js",
"vendor": "vercel",
"versions": [
{
"status": "affected",
"version": "\u003c 14.2.32"
},
{
"status": "affected",
"version": "\u003c 15.4.7"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Next.js is a React framework for building full-stack web applications. Prior to versions 14.2.32 and 15.4.7, when next() was used without explicitly passing the request object, it could lead to SSRF in self-hosted applications that incorrectly forwarded user-supplied headers. This vulnerability has been fixed in Next.js versions 14.2.32 and 15.4.7. All users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the next() function."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-08-29T22:03:35.168Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f"
},
{
"name": "https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8"
},
{
"name": "https://vercel.com/changelog/cve-2025-57822",
"tags": [
"x_refsource_MISC"
],
"url": "https://vercel.com/changelog/cve-2025-57822"
}
],
"source": {
"advisory": "GHSA-4342-x723-ch2f",
"discovery": "UNKNOWN"
},
"title": "Next.js Improper Middleware Redirect Handling Leads to SSRF"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-57822",
"datePublished": "2025-08-29T21:33:15.304Z",
"dateReserved": "2025-08-20T14:30:35.011Z",
"dateUpdated": "2025-09-02T17:26:25.016Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CERTFR-2025-ALE-014
Vulnerability from certfr_alerte
[Mise à jour du 11 décembre 2025]
Le CERT-FR a connaissance de multiples exploitations de la vulnérabilité CVE-2025-55182. Les serveurs avec une version vulnérable exposés après la publication des preuves de concept publiques du 5 décembre 2025 doivent être considérés comme compromis.
Certains billets de blogues [1] [2] incluent des indicateurs de compromission. Ces indicateurs n'ont pas été qualifiés par le CERT-FR.
[Mise à jour du 08 décembre 2025]
Le CERT-FR a connaissance d'exploitations pour la vulnérabilité CVE-2025-55182.
[Publication initiale]
Le 3 décembre 2025, React a publié un avis de sécurité relatif à la vulnérabilité CVE-2025-55182 affectant React Server Components et qui permet à un attaquant non authentifié de provoquer une exécution de code arbitraire à distance. L'éditeur de Next.js a également publié un avis de sécurité faisant référence à l'identifiant CVE-2025-66478. Cet identifiant a été rejeté en raison du doublon avec l'identifiant utilisé par React. Cette faille de sécurité est également connue sous le nom de React2Shell.
Cette vulnérabilité concerne plus précisément les React Server Functions. Même si une application n'utilise pas explicitement de telles fonctions, elle peut être vulnérable si elle supporte les React Server Components. En particulier, plusieurs cadriciels tels que Next.js implémentent de telles fonctions par défaut.
Les technologies React Server Components et React Server Functions sont relativement récentes (la version 19 de React a été publiée fin 2024) et toutes les applications utilisant la technologie React ne sont ainsi pas nécessairement affectées. Veuillez vous référer à la section systèmes affectés pour plus d'informations.
Le CERT-FR a connaissance de preuves de concept publiques pour cette vulnérabilité et anticipe des exploitations en masse.
Note : Le CERT-FR a connaissance de la mise en place de règles de blocages de la vulnérabilité au niveau de plusieurs pare-feu applicatifs web populaires. Bien que ces mécanismes puissent rendre l'exploitation de la vulnérabilité plus difficile, ils ne peuvent pas remplacer une mise à jour vers une version corrective.
Solutions
Le CERT-FR recommande de mettre à jour au plus vite les composants vers les versions correctives listées dans les avis éditeurs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| N/A | N/A | Expo sans les versions correctives de react-server-dom-webpack | ||
| N/A | N/A | Redwood SDK versions antérieures à 1.0.0-alpha.0 | ||
| Vercel | Next.js | Next.js versions 15.0.x antérieures à 15.0.5 | ||
| N/A | N/A | Waku sans les versions correctives de react-server-dom-webpack | ||
| Vercel | Next.js | Next.js versions 15.1.x antérieures à 15.1.9 | ||
| Vercel | Next.js | Next.js versions 15.5.x antérieures à 15.5.7 | ||
| Meta | React | react-server-dom-webpack, react-server-dom-parcel et react-server-dom-turbopack versions 19.2.x antérieures à 19.2.1 | ||
| Vercel | Next.js | Next.js versions 14.x canary | ||
| Vercel | Next.js | Next.js versions 15.3.x antérieures à 15.3.6 | ||
| N/A | N/A | React router avec le support de l'API RSC sans les derniers correctifs de sécurité | ||
| Meta | React | react-server-dom-webpack, react-server-dom-parcel et react-server-dom-turbopack versions 19.0.x antérieures à 19.0.1 | ||
| Vercel | Next.js | Next.js versions 15.4.x antérieures à 15.4.8 | ||
| Meta | React | react-server-dom-webpack, react-server-dom-parcel et react-server-dom-turbopack versions 19.1.x antérieures à 19.1.2 | ||
| Vercel | Next.js | Next.js versions 16.0.x antérieures à 16.0.7 | ||
| N/A | N/A | Vitejs avec le greffon plugin-rsc sans les derniers correctifs de sécurité | ||
| Vercel | Next.js | Next.js versions 15.2.x antérieures à 15.2.6 |
References
| Title | Publication Time | Tags | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Expo sans les versions correctives de react-server-dom-webpack",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
},
{
"description": "Redwood SDK versions ant\u00e9rieures \u00e0 1.0.0-alpha.0",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
},
{
"description": "Next.js versions 15.0.x ant\u00e9rieures \u00e0 15.0.5",
"product": {
"name": "Next.js",
"vendor": {
"name": "Vercel",
"scada": false
}
}
},
{
"description": "Waku sans les versions correctives de react-server-dom-webpack",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
},
{
"description": "Next.js versions 15.1.x ant\u00e9rieures \u00e0 15.1.9",
"product": {
"name": "Next.js",
"vendor": {
"name": "Vercel",
"scada": false
}
}
},
{
"description": "Next.js versions 15.5.x ant\u00e9rieures \u00e0 15.5.7",
"product": {
"name": "Next.js",
"vendor": {
"name": "Vercel",
"scada": false
}
}
},
{
"description": "react-server-dom-webpack, react-server-dom-parcel et react-server-dom-turbopack versions 19.2.x ant\u00e9rieures \u00e0 19.2.1",
"product": {
"name": "React",
"vendor": {
"name": "Meta",
"scada": false
}
}
},
{
"description": "Next.js versions 14.x canary",
"product": {
"name": "Next.js",
"vendor": {
"name": "Vercel",
"scada": false
}
}
},
{
"description": "Next.js versions 15.3.x ant\u00e9rieures \u00e0 15.3.6",
"product": {
"name": "Next.js",
"vendor": {
"name": "Vercel",
"scada": false
}
}
},
{
"description": "React router avec le support de l\u0027API RSC sans les derniers correctifs de s\u00e9curit\u00e9",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
},
{
"description": "react-server-dom-webpack, react-server-dom-parcel et react-server-dom-turbopack versions 19.0.x ant\u00e9rieures \u00e0 19.0.1",
"product": {
"name": "React",
"vendor": {
"name": "Meta",
"scada": false
}
}
},
{
"description": "Next.js versions 15.4.x ant\u00e9rieures \u00e0 15.4.8",
"product": {
"name": "Next.js",
"vendor": {
"name": "Vercel",
"scada": false
}
}
},
{
"description": "react-server-dom-webpack, react-server-dom-parcel et react-server-dom-turbopack versions 19.1.x ant\u00e9rieures \u00e0 19.1.2",
"product": {
"name": "React",
"vendor": {
"name": "Meta",
"scada": false
}
}
},
{
"description": "Next.js versions 16.0.x ant\u00e9rieures \u00e0 16.0.7",
"product": {
"name": "Next.js",
"vendor": {
"name": "Vercel",
"scada": false
}
}
},
{
"description": "Vitejs avec le greffon plugin-rsc sans les derniers correctifs de s\u00e9curit\u00e9",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
},
{
"description": "Next.js versions 15.2.x ant\u00e9rieures \u00e0 15.2.6",
"product": {
"name": "Next.js",
"vendor": {
"name": "Vercel",
"scada": false
}
}
}
],
"affected_systems_content": "",
"closed_at": "2026-02-12",
"content": "## Solutions\n\nLe CERT-FR recommande de mettre \u00e0 jour au plus vite les composants vers les versions correctives list\u00e9es dans les avis \u00e9diteurs (cf. section Documentation). ",
"cves": [
{
"name": "CVE-2025-55182",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-55182"
},
{
"name": "CVE-2025-66478",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-66478"
}
],
"initial_release_date": "2025-12-05T00:00:00",
"last_revision_date": "2026-02-12T00:00:00",
"links": [
{
"title": "[2] Billet de Blogue de Huntress, analyse et indicateurs de compromission",
"url": "https://www.huntress.com/blog/peerblight-linux-backdoor-exploits-react2shell"
},
{
"title": "Bulletin d\u0027actualit\u00e9 CERTFR-2025-ACT-053 du 04 d\u00e9cembre 2025",
"url": "https://cert.ssi.gouv.fr/actualite/CERTFR-2025-ACT-053/"
},
{
"title": "[1] Billet de Blogue de Wiz.io, analyse et indicateurs de compromission ",
"url": "https://www.wiz.io/blog/nextjs-cve-2025-55182-react2shell-deep-dive"
},
{
"title": "Compromission syst\u00e8me - Qualification",
"url": "https://www.cert.ssi.gouv.fr/fiche/CERTFR-2024-RFX-005/"
},
{
"title": "Compromission syst\u00e8me - Endiguement",
"url": "https://www.cert.ssi.gouv.fr/fiche/CERTFR-2024-RFX-006/"
}
],
"reference": "CERTFR-2025-ALE-014",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-12-05T00:00:00.000000"
},
{
"description": "connaissance d\u0027exploitations pour la vuln\u00e9rabilit\u00e9 CVE-2025-55182",
"revision_date": "2025-12-08T00:00:00.000000"
},
{
"description": "Recherche de compromission, r\u00e9f\u00e9rences des fiches syst\u00e8me de qualification et endiguement",
"revision_date": "2025-12-11T00:00:00.000000"
},
{
"description": " Cl\u00f4ture de l\u0027alerte. Cela ne signifie pas la fin d\u0027une menace. Seule l\u0027application de la mise \u00e0 jour permet de vous pr\u00e9munir contre l\u0027exploitation de la vuln\u00e9rabilit\u00e9 correspondante.",
"revision_date": "2026-02-12T00:00:00.000000"
}
],
"risks": [
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
}
],
"summary": "**\u003cspan class=\"important-content\"\u003e[Mise \u00e0 jour du 11 d\u00e9cembre 2025]\u003c/span\u003e**\n\nLe CERT-FR a connaissance de multiples exploitations de la vuln\u00e9rabilit\u00e9 CVE-2025-55182. Les serveurs avec une version vuln\u00e9rable expos\u00e9s apr\u00e8s la publication des preuves de concept publiques du 5 d\u00e9cembre 2025 doivent \u00eatre consid\u00e9r\u00e9s comme compromis.\n\nCertains billets de blogues [1] [2] incluent des indicateurs de compromission. Ces indicateurs n\u0027ont pas \u00e9t\u00e9 qualifi\u00e9s par le CERT-FR.\n\n\n**[Mise \u00e0 jour du 08 d\u00e9cembre 2025]**\n\nLe CERT-FR a connaissance d\u0027exploitations pour la vuln\u00e9rabilit\u00e9 CVE-2025-55182.\n\n**[Publication initiale]**\n\nLe 3 d\u00e9cembre 2025, React a publi\u00e9 un avis de s\u00e9curit\u00e9 relatif \u00e0 la vuln\u00e9rabilit\u00e9 CVE-2025-55182 affectant React Server Components et qui permet \u00e0 un attaquant non authentifi\u00e9 de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance. L\u0027\u00e9diteur de Next.js a \u00e9galement publi\u00e9 un avis de s\u00e9curit\u00e9 faisant r\u00e9f\u00e9rence \u00e0 l\u0027identifiant CVE-2025-66478. Cet identifiant a \u00e9t\u00e9 rejet\u00e9 en raison du doublon avec l\u0027identifiant utilis\u00e9 par React. Cette faille de s\u00e9curit\u00e9 est \u00e9galement connue sous le nom de *React2Shell*. \n\nCette vuln\u00e9rabilit\u00e9 concerne plus pr\u00e9cis\u00e9ment les React Server Functions. M\u00eame si une application n\u0027utilise pas explicitement de telles fonctions, elle peut \u00eatre vuln\u00e9rable si elle supporte les React Server Components. En particulier, plusieurs cadriciels tels que Next.js impl\u00e9mentent de telles fonctions par d\u00e9faut. \n\nLes technologies React Server Components et React Server Functions sont relativement r\u00e9centes (la version 19 de React a \u00e9t\u00e9 publi\u00e9e fin 2024) et toutes les applications utilisant la technologie React ne sont ainsi pas n\u00e9cessairement affect\u00e9es. Veuillez vous r\u00e9f\u00e9rer \u00e0 la section syst\u00e8mes affect\u00e9s pour plus d\u0027informations.\n\nLe CERT-FR a connaissance de preuves de concept publiques pour cette vuln\u00e9rabilit\u00e9 et anticipe des exploitations en masse.\n\n*Note : Le CERT-FR a connaissance de la mise en place de r\u00e8gles de blocages de la vuln\u00e9rabilit\u00e9 au niveau de plusieurs pare-feu applicatifs web populaires. Bien que ces m\u00e9canismes puissent rendre l\u0027exploitation de la vuln\u00e9rabilit\u00e9 plus difficile, ils ne peuvent pas remplacer une mise \u00e0 jour vers une version corrective.* ",
"title": "[M\u00e0J] Vuln\u00e9rabilit\u00e9 dans React Server Components",
"vendor_advisories": [
{
"published_at": "2025-12-03",
"title": "Billet de blogue React relatif \u00e0 la vuln\u00e9rabilit\u00e9 CVE-2025-55182",
"url": "https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components"
},
{
"published_at": "2025-12-03",
"title": "Billet de blogue Vercel relatif \u00e0 la vuln\u00e9rabilit\u00e9 CVE-2025-55182",
"url": "https://vercel.com/changelog/cve-2025-55182"
},
{
"published_at": "2025-12-03",
"title": "Bulletin de s\u00e9curit\u00e9 Facebook CVE-2025-55182",
"url": "https://www.facebook.com/security/advisories/cve-2025-55182"
}
]
}