CVE-2025-55132

MEDIUM

Node.js 20.0.0-20.19.1 - Incorrect Default Permissions via futimes()

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0023
EPSS Percentile 13.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-276
Status published
Products (1)
nodejs/node.js 20.0.0 - 20.20.0
Published Jan 20, 2026
Tracked Since Feb 18, 2026