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CVE-2026-1184

Deserialization of Untrusted Data in GitLab

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 18.9.7, 18.10.6, 18.11.3
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

GitLab has remediated an issue in GitLab EE affecting all versions from 11.9 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by uploading a specially crafted file due to improper validation.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • GitLab GitLab

    From 11.9 · fixed in 18.9.7; From 18.10 · fixed in 18.10.6; From 18.11 · fixed in 18.11.3

References 3

hackerone.com

gitlab.com

about.gitlab.com