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CVE-2026-3848

CVE-2026-3848 · Improper Neutralization of CRLF Sequences ('CRLF Injection') 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 8.11 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to make unintended internal requests through proxy environments under certain conditions due to improper input validation in import functionality.

CVSS 5.0 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • gitlab

    Versions
    • ≥ 8.11, < 18.7.6: Affected (semver)
    • ≥ 18.8, < 18.8.6: Affected (semver)
    • ≥ 18.9, < 18.9.2: Affected (semver)

    Update to 18.7.6; Update to 18.8.6; Update to 18.9.2

  • 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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