CVEvulnerability

CVE-2026-21711

5.3 MEDIUM 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])
5.3 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weaknesses
CWE-284

Description

A flaw in Node.js Permission Model network enforcement leaves Unix Domain Socket (UDS) server operations without the required permission checks, while all comparable network paths correctly enforce them. As a result, code running under `--permission` without `--allow-net` can create and expose local IPC endpoints, allowing communication with other processes on the same host outside of the intended network restriction boundary. This vulnerability affects Node.js **25.x** processes using the Permission Model where `--allow-net` is intentionally omitted to restrict network access. Note that `--allow-net` is currently an experimental feature.

Affected configurations

• nodejs node.js (< 20.0.0) • nodejs node.js (>= 25.0.0 <= 25.8.1)

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References