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CVE-2026-100755

CVE-2026-100755 · Acceptance of Extraneous Untrusted Data With Trusted Data 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 16.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain deployment configurations, could have allowed an authenticated user to poison cached page content served to other users due to improper cache key construction.

CVSS 4.6 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • gitlab

    Versions
    • ≥ 16.2, < 19.2.8: Affected (semver)
    • ≥ 19.3, < 19.3.5: Affected (semver)
    • ≥ 19.4, < 19.4.2: Affected (semver)

    Update to 19.2.8; Update to 19.3.5; Update to 19.4.2

  • 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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