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
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-64648",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-28T14:14:02.950100Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-28T14:14:16.051Z",
"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, 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\u0027s 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."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "LOW"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-524",
"description": "CWE-524: Use of Cache Containing Sensitive Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-27T19:20:42.623Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vercel/next.js/security/advisories/GHSA-68g3-v927-f742",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-68g3-v927-f742"
},
{
"name": "https://github.com/vercel/next.js/commit/062f66700b52a5d6bba2c0605d55577ab7ad262c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/commit/062f66700b52a5d6bba2c0605d55577ab7ad262c"
},
{
"name": "https://github.com/vercel/next.js/commit/73b94872bc343d09494b50394d8c08eb9fc8e56a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vercel/next.js/commit/73b94872bc343d09494b50394d8c08eb9fc8e56a"
},
{
"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-68g3-v927-f742",
"discovery": "UNKNOWN"
},
"title": "Next.js: Response Body Cache Confusion for Requests Containing Bodies"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-64648",
"datePublished": "2026-07-27T19:20:42.623Z",
"dateReserved": "2026-07-20T17:11:30.895Z",
"dateUpdated": "2026-07-28T14:14:16.051Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-64648\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-28T14:14:02.950100Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-28T14:14:08.569Z\"}}], \"cna\": {\"title\": \"Next.js: Response Body Cache Confusion for Requests Containing Bodies\", \"source\": {\"advisory\": \"GHSA-68g3-v927-f742\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 6, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N\", \"userInteraction\": \"PASSIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"LOW\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"vercel\", \"product\": \"next.js\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 13.0.0, \u003c 15.5.21\"}, {\"status\": \"affected\", \"version\": \"\u003e= 16.0.0, \u003c 16.2.11\"}]}], \"references\": [{\"url\": \"https://github.com/vercel/next.js/security/advisories/GHSA-68g3-v927-f742\", \"name\": \"https://github.com/vercel/next.js/security/advisories/GHSA-68g3-v927-f742\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/vercel/next.js/commit/062f66700b52a5d6bba2c0605d55577ab7ad262c\", \"name\": \"https://github.com/vercel/next.js/commit/062f66700b52a5d6bba2c0605d55577ab7ad262c\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/vercel/next.js/commit/73b94872bc343d09494b50394d8c08eb9fc8e56a\", \"name\": \"https://github.com/vercel/next.js/commit/73b94872bc343d09494b50394d8c08eb9fc8e56a\", \"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/v15.5.21\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/vercel/next.js/releases/tag/v16.2.11\", \"name\": \"https://github.com/vercel/next.js/releases/tag/v16.2.11\", \"tags\": [\"x_refsource_MISC\"]}], \"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, 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\u0027s 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-524\", \"description\": \"CWE-524: Use of Cache Containing Sensitive Information\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-07-27T19:20:42.623Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-64648\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-28T14:14:16.051Z\", \"dateReserved\": \"2026-07-20T17:11:30.895Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-07-27T19:20:42.623Z\", \"assignerShortName\": \"GitHub_M\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…