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CVE-2026-21711

CVE-2026-21711

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.3 · Medium · EPSS 0.2%

Published
Updated

Stack: system · node

Affected products and versions

  • node.js

    Versions
    • ≥ 25.8.1, ≤ 25.8.1: Affected (semver)
    • ≥ 4.0, < 4.*: Affected (semver)
    • ≥ 5.0, < 5.*: Affected (semver)
    • ≥ 6.0, < 6.*: Affected (semver)
    • ≥ 7.0, < 7.*: Affected (semver)
    • ≥ 8.0, < 8.*: Affected (semver)
    • ≥ 9.0, < 9.*: Affected (semver)
    • ≥ 10.0, < 10.*: Affected (semver)
    • ≥ 11.0, < 11.*: Affected (semver)
    • ≥ 12.0, < 12.*: Affected (semver)
    • ≥ 13.0, < 13.*: Affected (semver)
    • ≥ 14.0, < 14.*: Affected (semver)
    • ≥ 15.0, < 15.*: Affected (semver)
    • ≥ 16.0, < 16.*: Affected (semver)
    • ≥ 17.0, < 17.*: Affected (semver)
    • ≥ 18.0, < 18.*: Affected (semver)
    • ≥ 19.0, < 19.*: 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:24.04:LTS

    Versions
    • 18.13.0+dfsg1-1ubuntu2
    • 18.19.1+dfsg-2ubuntu4
    • 18.19.1+dfsg-6ubuntu1
    • 18.19.1+dfsg-6ubuntu2
    • 18.19.1+dfsg-6ubuntu5
    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

Original sources

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