CVE-2026-21636
CVE-2026-21636
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A flaw in Node.js's permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when `--permission` is enabled. Even without `--allow-net`, attacker-controlled inputs (such as URLs or socketPath options) can connect to arbitrary local sockets via net, tls, or undici/fetch. This breaks the intended security boundary of the permission model and enables access to privileged local services, potentially leading to privilege escalation, data exposure, or local code execution. * The issue affects users of the Node.js permission model on version v25. In the moment of this vulnerability, network permissions (`--allow-net`) are still in the experimental phase.
CVSS 5.8 · Medium · EPSS 0.9%
- Published
- Updated
Affected products and versions
node.js
- Versions
- ≥ 25.2.1, ≤ 25.2.1: Affected (semver)
No fix published
nodejs Ubuntu:Pro:14.04:LTS
- Versions
- 0.10.15~dfsg1-4
- 0.10.21~dfsg1-1
- 0.10.22~dfsg1-2
- 0.10.23~dfsg1-1
- 0.10.23~dfsg1-2
- 0.10.23~dfsg1-3
- 0.10.24~dfsg1-1
- 0.10.25~dfsg2-2
- 0.10.25~dfsg2-2ubuntu1
- 0.10.25~dfsg2-2ubuntu1.2
- 0.10.25~dfsg2-2ubuntu1.2+esm1
- 0.10.25~dfsg2-2ubuntu1.2+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nodejs Ubuntu:Pro:16.04:LTS
- Versions
- 0.10.25~dfsg2-2ubuntu1
- 4.2.2~dfsg-1
- 4.2.3~dfsg-1
- 4.2.4~dfsg-1ubuntu1
- 4.2.4~dfsg-2
- 4.2.6~dfsg-1ubuntu1
- 4.2.6~dfsg-1ubuntu4
- 4.2.6~dfsg-1ubuntu4.1
- 4.2.6~dfsg-1ubuntu4.2
- 4.2.6~dfsg-1ubuntu4.2+esm1
- 4.2.6~dfsg-1ubuntu4.2+esm2
- 4.2.6~dfsg-1ubuntu4.2+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nodejs Ubuntu:Pro:18.04:LTS
- Versions
- 6.11.4~dfsg-1ubuntu1
- 6.11.4~dfsg-1ubuntu2
- 6.12.0~dfsg-1ubuntu1
- 6.12.0~dfsg-2ubuntu1
- 6.12.0~dfsg-2ubuntu2
- 8.10.0~dfsg-2
- 8.10.0~dfsg-2ubuntu0.2
- 8.10.0~dfsg-2ubuntu0.3
- 8.10.0~dfsg-2ubuntu0.4
- 8.10.0~dfsg-2ubuntu0.4+esm1
- 8.10.0~dfsg-2ubuntu0.4+esm2
- 8.10.0~dfsg-2ubuntu0.4+esm3
- 8.10.0~dfsg-2ubuntu0.4+esm4
- 8.10.0~dfsg-2ubuntu0.4+esm5
- 8.10.0~dfsg-2ubuntu0.4+esm6
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nodejs Ubuntu:Pro:20.04:LTS
- Versions
- 10.15.2~dfsg-2ubuntu1
- 10.17.0~dfsg-2ubuntu4
- 10.17.0~dfsg-2ubuntu6
- 10.19.0~dfsg-3ubuntu1
- 10.19.0~dfsg-3ubuntu1.1
- 10.19.0~dfsg-3ubuntu1.2
- 10.19.0~dfsg-3ubuntu1.3
- 10.19.0~dfsg-3ubuntu1.5
- 10.19.0~dfsg-3ubuntu1.6
- 10.19.0~dfsg-3ubuntu1.6+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nodejs Ubuntu:Pro:22.04:LTS
- Versions
- 12.22.5~dfsg-5ubuntu1
- 12.22.7~dfsg-2ubuntu1
- 12.22.7~dfsg-2ubuntu3
- 12.22.9~dfsg-1ubuntu2
- 12.22.9~dfsg-1ubuntu3
- 12.22.9~dfsg-1ubuntu3.1
- 12.22.9~dfsg-1ubuntu3.2
- 12.22.9~dfsg-1ubuntu3.3
- 12.22.9~dfsg-1ubuntu3.4
- 12.22.9~dfsg-1ubuntu3.5
- 12.22.9~dfsg-1ubuntu3.6
- 12.22.9~dfsg-1ubuntu3.6+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nodejs Ubuntu:25.10
- Versions
- 20.18.1+dfsg-1ubuntu2
- 20.19.2+dfsg-1
- 20.19.4+dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nodejs Ubuntu:26.10
- Versions
- 22.22.1+dfsg+~cs22.19.15-1ubuntu1
- 24.16.0+dfsg+~cs24.13.1-2ubuntu1
- 24.18.0+dfsg+~cs24.13.2-1ubuntu1
- 24.19.0+dfsg+~cs24.13.3-1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
nodejs Ubuntu:26.04:LTS
- Versions
- 20.19.4+dfsg-1
- 20.19.5+dfsg+~cs20.19.12-4
- 22.21.1+dfsg+~cs22.19.0-6ubuntu4
- 22.22.0+dfsg+~cs22.19.6-1ubuntu2
- 22.22.0+dfsg+~cs22.19.13-2ubuntu1
- 22.22.1+dfsg+~cs22.19.15-1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published