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CVE-2026-4868

CVE-2026-4868 · Authorization Bypass Through User-Controlled Key in GitLab

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

GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under certain conditions, could have allowed an authenticated user to cause specific Duo AI workflows to run under another user's identity due to improper user identity resolution when triggering Duo AI workflow runners.

CVSS 8.2 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • gitlab

    Versions
    • ≥ 18.8, < 18.10.7: Affected (semver)
    • ≥ 18.11, < 18.11.4: Affected (semver)
    • ≥ 19.0, < 19.0.1: Affected (semver)

    Update to 18.10.7; Update to 18.11.4; Update to 19.0.1

  • 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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