CVE-2026-55553 (GCVE-0-2026-55553)
Vulnerability from cvelistv5
Published
2026-08-25 16:18
Modified
2026-08-25 18:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
urllib is an HTTP client for Node.js that supports authentication, redirects, timeouts, and other request features. Prior to 4.9.1 and 2.44.1, urllib follows redirects through followRedirect but reuses caller-supplied options across origins. In src/HttpClient.ts, #requestInternal recursively calls this.#requestInternal(nextUrl.href, options, requestContext), causing options.headers and auth or digestAuth values to be reused when the redirect target has a different scheme, host, or port. Authorization, Cookie, Proxy-Authorization, x-api-key, x-auth-token, and x-access-token can therefore be sent to an attacker-controlled redirected origin, exposing credentials intended for the original origin and potentially allowing reuse against the original partner API or related services. No user interaction is required. This issue is fixed in versions 2.44.1 and 4.9.1.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| node-modules | urllib |
Version: >= 3.0.0, < 4.9.1 Version: < 2.44.1 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-55553",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T18:25:35.484065Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T18:25:40.662Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/node-modules/urllib/security/advisories/GHSA-hq3h-g68c-hp78"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "urllib",
"vendor": "node-modules",
"versions": [
{
"status": "affected",
"version": "\u003e= 3.0.0, \u003c 4.9.1"
},
{
"status": "affected",
"version": "\u003c 2.44.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "urllib is an HTTP client for Node.js that supports authentication, redirects, timeouts, and other request features. Prior to 4.9.1 and 2.44.1, urllib follows redirects through followRedirect but reuses caller-supplied options across origins. In src/HttpClient.ts, #requestInternal recursively calls this.#requestInternal(nextUrl.href, options, requestContext), causing options.headers and auth or digestAuth values to be reused when the redirect target has a different scheme, host, or port. Authorization, Cookie, Proxy-Authorization, x-api-key, x-auth-token, and x-access-token can therefore be sent to an attacker-controlled redirected origin, exposing credentials intended for the original origin and potentially allowing reuse against the original partner API or related services. No user interaction is required. This issue is fixed in versions 2.44.1 and 4.9.1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-201",
"description": "CWE-201: Insertion of Sensitive Information Into Sent Data",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-522",
"description": "CWE-522: Insufficiently Protected Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T16:18:21.519Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/node-modules/urllib/security/advisories/GHSA-hq3h-g68c-hp78",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/node-modules/urllib/security/advisories/GHSA-hq3h-g68c-hp78"
},
{
"name": "https://github.com/node-modules/urllib/pull/812",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/node-modules/urllib/pull/812"
},
{
"name": "https://github.com/node-modules/urllib/pull/813",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/node-modules/urllib/pull/813"
},
{
"name": "https://github.com/node-modules/urllib/commit/7c86c465883ebd3dea5109c87d7bbe3b00960a16",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/node-modules/urllib/commit/7c86c465883ebd3dea5109c87d7bbe3b00960a16"
},
{
"name": "https://github.com/node-modules/urllib/commit/811a8d56e64e540bf6a19bf8b3737692f05d5c46",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/node-modules/urllib/commit/811a8d56e64e540bf6a19bf8b3737692f05d5c46"
},
{
"name": "https://github.com/node-modules/urllib/releases/tag/v2.44.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/node-modules/urllib/releases/tag/v2.44.1"
},
{
"name": "https://github.com/node-modules/urllib/releases/tag/v4.9.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/node-modules/urllib/releases/tag/v4.9.1"
}
],
"source": {
"advisory": "GHSA-hq3h-g68c-hp78",
"discovery": "UNKNOWN"
},
"title": "urllib: Cross-origin redirects preserve credential-bearing request headers, leading to potential credential leakage"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-55553",
"datePublished": "2026-08-25T16:18:21.519Z",
"dateReserved": "2026-06-16T23:11:20.213Z",
"dateUpdated": "2026-08-25T18:25:40.662Z",
"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-2026-55553\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-25T18:25:35.484065Z\"}}}], \"references\": [{\"url\": \"https://github.com/node-modules/urllib/security/advisories/GHSA-hq3h-g68c-hp78\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-25T18:25:19.067Z\"}}], \"cna\": {\"title\": \"urllib: Cross-origin redirects preserve credential-bearing request headers, leading to potential credential leakage\", \"source\": {\"advisory\": \"GHSA-hq3h-g68c-hp78\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"node-modules\", \"product\": \"urllib\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 3.0.0, \u003c 4.9.1\"}, {\"status\": \"affected\", \"version\": \"\u003c 2.44.1\"}]}], \"references\": [{\"url\": \"https://github.com/node-modules/urllib/security/advisories/GHSA-hq3h-g68c-hp78\", \"name\": \"https://github.com/node-modules/urllib/security/advisories/GHSA-hq3h-g68c-hp78\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/node-modules/urllib/pull/812\", \"name\": \"https://github.com/node-modules/urllib/pull/812\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/node-modules/urllib/pull/813\", \"name\": \"https://github.com/node-modules/urllib/pull/813\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/node-modules/urllib/commit/7c86c465883ebd3dea5109c87d7bbe3b00960a16\", \"name\": \"https://github.com/node-modules/urllib/commit/7c86c465883ebd3dea5109c87d7bbe3b00960a16\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/node-modules/urllib/commit/811a8d56e64e540bf6a19bf8b3737692f05d5c46\", \"name\": \"https://github.com/node-modules/urllib/commit/811a8d56e64e540bf6a19bf8b3737692f05d5c46\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/node-modules/urllib/releases/tag/v2.44.1\", \"name\": \"https://github.com/node-modules/urllib/releases/tag/v2.44.1\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/node-modules/urllib/releases/tag/v4.9.1\", \"name\": \"https://github.com/node-modules/urllib/releases/tag/v4.9.1\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"urllib is an HTTP client for Node.js that supports authentication, redirects, timeouts, and other request features. Prior to 4.9.1 and 2.44.1, urllib follows redirects through followRedirect but reuses caller-supplied options across origins. In src/HttpClient.ts, #requestInternal recursively calls this.#requestInternal(nextUrl.href, options, requestContext), causing options.headers and auth or digestAuth values to be reused when the redirect target has a different scheme, host, or port. Authorization, Cookie, Proxy-Authorization, x-api-key, x-auth-token, and x-access-token can therefore be sent to an attacker-controlled redirected origin, exposing credentials intended for the original origin and potentially allowing reuse against the original partner API or related services. No user interaction is required. This issue is fixed in versions 2.44.1 and 4.9.1.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-201\", \"description\": \"CWE-201: Insertion of Sensitive Information Into Sent Data\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-522\", \"description\": \"CWE-522: Insufficiently Protected Credentials\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-08-25T16:18:21.519Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-55553\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-25T18:25:40.662Z\", \"dateReserved\": \"2026-06-16T23:11:20.213Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-08-25T16:18:21.519Z\", \"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…