CVEvulnerability

CVE-2026-21716

3.3 LOW Published 2026-03-30 Modified 2026-08-19 Official page ↗
Status
Analyzed
Published
2026-03-30
Last modified
2026-08-19
Assigner
[email protected]
CVSS 3.0 ([email protected])
3.3 LOW — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-862

Description

An incomplete fix for CVE-2024-36137 leaves `FileHandle.chmod()` and `FileHandle.chown()` in the promises API without the required permission checks, while their callback-based equivalents (`fs.fchmod()`, `fs.fchown()`) were correctly patched. As a result, code running under `--permission` with restricted `--allow-fs-write` can still use promise-based `FileHandle` methods to modify file permissions and ownership on already-open file descriptors, bypassing the intended write restrictions. This vulnerability affects **20.x, 22.x, 24.x, and 25.x** processes using the Permission Model where `--allow-fs-write` is intentionally restricted.

Affected configurations

• nodejs node.js (<= 20.20.1) • nodejs node.js (>= 22.0.0 <= 22.22.1) • nodejs node.js (>= 24.0.0 <= 24.14.0) • nodejs node.js (>= 25.0.0 <= 25.8.1)

Related

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References