CVE-2026-21711
nodejs node
MEDIUM 5.3
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- hackerone
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-284 — Improper Access Control
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | hackerone |
| CVSS 3.0 | MEDIUM 5.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | NVD · support@hackerone.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-17172
- GCVE · GCVE-0-2026-21711
Affected configurations (NVD CPE)
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*< 20.0.0cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*≥ 25.0.0 ≤ 25.8.1
Affected products
| Product | Versions |
|---|---|
| nodejs · node | affected 25.8.1 ≤ 25.8.1 ; affected 4.0 < 4.* ; affected 5.0 < 5.* ; affected 6.0 < 6.* ; affected 7.0 < 7.* ; affected 8.0 < 8.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |