A flaw in Node.js's permission model allows a file's access and modification timestamps to be changed via `futimes()` even when the process has only read permissions. Unlike `utimes()`, `futimes()` does not apply the expected write-permission checks, which means file metadata can be modified in read-only directories. This behavior could be used to alter timestamps in ways that obscure activity, reducing the reliability of logs. This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 21 Jan 2026 21:15:00 +0900
| Type | Values Removed | Values Added |
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| Title | nodejs: Nodejs filesystem permissions bypass | |
| Weaknesses | CWE-281 | |
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threat_severity
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threat_severity
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Wed, 21 Jan 2026 20:30:00 +0900
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Nodejs
Nodejs nodejs |
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Nodejs
Nodejs nodejs |
Wed, 21 Jan 2026 05:45:00 +0900
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw in Node.js's permission model allows a file's access and modification timestamps to be changed via `futimes()` even when the process has only read permissions. Unlike `utimes()`, `futimes()` does not apply the expected write-permission checks, which means file metadata can be modified in read-only directories. This behavior could be used to alter timestamps in ways that obscure activity, reducing the reliability of logs. This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25. | |
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| Metrics |
cvssV3_0
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Projects
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Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2026-01-20T20:41:55.620Z
Reserved: 2025-08-07T15:00:05.576Z
Link: CVE-2025-55132
No data.
Status : Received
Published: 2026-01-20T21:16:03.430
Modified: 2026-01-20T21:16:03.430
Link: CVE-2025-55132
OpenCVE Enrichment
Updated: 2026-01-21T20:18:47Z
Weaknesses