CVE-2025-55132 | THREATINT

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.

PUBLISHED Reserved 2025-08-07 | Published 2026-01-20 | Updated 2026-01-21 | Assigner hackerone

LOW: 2.8CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Product status

Default status

unaffected

20.19.6 (semver)

affected

22.21.1 (semver)

affected

24.12.0 (semver)

affected

25.2.1 (semver)

affected

References

nodejs.org/.../vulnerability/december-2025-security-releases

cve.org (CVE-2025-55132)

nvd.nist.gov (CVE-2025-55132)

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