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CVE-2025-12983

CVE-2025-12983 · Memory Allocation with Excessive Size Value 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 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to cause a denial of service condition by submitting specially crafted markdown content with nested formatting patterns.

CVSS 3.5 · Low · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • gitlab

    Versions
    • ≥ 16.9, < 18.3.6: Affected (semver)
    • ≥ 18.4, < 18.4.4: Affected (semver)
    • ≥ 18.5, < 18.5.2: Affected (semver)

    Update to 18.3.6; Update to 18.4.4; Update to 18.5.2

  • 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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