CVE-2025-55132

Analyzed
Published: 20 Jan 2026, 20:41
Last modified:21 Jan 2026, 18:53

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
0.23% LOW
0% probability +0.22%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

20 Jan 2026, 20:41
Published
Vulnerability first disclosed
21 Jan 2026, 18:53
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1MEDIUMScore: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • v3.0LOWScore: 2.8CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

EPSS Trends

Current EPSS score: 0.23% Percentile: 13%

Techniques & Countermeasures

  • CWE-276Incorrect Default Permissions

    During installation, installed file permissions are set to allow anyone to modify those files.

Affected Systems

  • nodejsnode

    20.19.6 | 22.21.1 | 24.12.0 | 25.2.1

  • nodejsnode.js

    ≥ 20.0.0, < 20.20.0 | ≥ 22.0.0, < 22.22.0 | ≥ 24.0.0, < 24.13.0 | ≥ 25.0.0, < 25.3.0

References (1)