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vuln-cve/data/2026/23xxx/CVE-2026-23889.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-23889",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-01-16T21:02:02.902Z",
"datePublished": "2026-01-26T21:50:55.289Z",
"dateUpdated": "2026-01-27T21:40:36.271Z"
},
"containers": {
"cna": {
"title": "pnpm has Windows-specific tarball Path Traversal",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"lang": "en",
"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/pnpm/pnpm/security/advisories/GHSA-6x96-7vc8-cm3p",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-6x96-7vc8-cm3p"
},
{
"name": "https://github.com/pnpm/pnpm/commit/6ca07ffbe6fc0e8b8cdc968f228903ba0886f7c0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pnpm/pnpm/commit/6ca07ffbe6fc0e8b8cdc968f228903ba0886f7c0"
},
{
"name": "https://github.com/pnpm/pnpm/releases/tag/v10.28.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pnpm/pnpm/releases/tag/v10.28.1"
}
],
"affected": [
{
"vendor": "pnpm",
"product": "pnpm",
"versions": [
{
"version": "< 10.28.1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-01-26T22:00:18.657Z"
},
"descriptions": [
{
"lang": "en",
"value": "pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's tarball extraction allows malicious packages to write files outside the package directory on Windows. The path normalization only checks for `./` but not `.\\`. On Windows, backslashes are directory separators, enabling path traversal. This vulnerability is Windows-only. This issue impacts Windows pnpm users and Windows CI/CD pipelines (GitHub Actions Windows runners, Azure DevOps). It can lead to overwriting `.npmrc`, build configs, or other files. Version 10.28.1 contains a patch."
}
],
"source": {
"advisory": "GHSA-6x96-7vc8-cm3p",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-01-27T21:40:27.399595Z",
"id": "CVE-2026-23889",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-01-27T21:40:36.271Z"
}
}
]
}
}