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CVE-2026-5173

CVE-2026-5173 · Exposed Dangerous Method or Function in GitLab

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9.6 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to invoke unintended server-side methods through websocket connections due to improper access control.

CVSS 8.5 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • gitlab

    Versions
    • ≥ 16.9.6, < 18.8.9: Affected (semver)
    • ≥ 18.9, < 18.9.5: Affected (semver)
    • ≥ 18.10, < 18.10.3: Affected (semver)

    Update to 18.10.3; Update to 18.8.9; Update to 18.9.5

  • gitlab Ubuntu:16.04:LTS

    Versions
    • 8.4.3+dfsg-9
    • 8.4.3+dfsg-12
    • 8.5.8+dfsg-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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