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CVE-2026-5816

Improper Resolution of Path Equivalence in GitLab

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 18.10.4, 18.11.1
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.

Timeline

  1. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  2. CVE published
  3. Record last updated

Affected versions

  • GitLab GitLab

    From 18.10 · fixed in 18.10.4; From 18.11 · fixed in 18.11.1

References 3

hackerone.com

gitlab.com

about.gitlab.com