CVEvulnerability

CVE-2026-21715

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:L/I:N/A:N
Weaknesses
CWE-732

Description

A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync.native()` without the required read permission checks, while all comparable filesystem functions correctly enforce them. As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync.native()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories. This vulnerability affects **20.x, 22.x, 24.x, and 25.x** processes using the Permission Model where `--allow-fs-read` 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-732 Incorrect Permission Assignment for Critical Resource weakness

References