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CVE-2025-12734

CVE-2025-12734 · Improper Encoding or Escaping of Output 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 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to, under certain conditions, render content in dialogs to other users by injecting malicious HTML content into merge request titles.

CVSS 3.5 · Low · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • gitlab

    Versions
    • ≥ 15.6, < 18.4.6: Affected (semver)
    • ≥ 18.5, < 18.5.4: Affected (semver)
    • ≥ 18.6, < 18.6.2: Affected (semver)

    Update to 18.4.6; Update to 18.5.4; Update to 18.6.2

  • 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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