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CVE-2025-2256

Improper Validation of Specified Quantity in Input in GitLab

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 18.1.6, 18.2.6, 18.3.2
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

An issue has been discovered in GitLab CE/EE affecting all versions from 7.12 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed unauthorized users to render the GitLab instance unresponsive to legitimate users by sending multiple concurrent large SAML responses.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • GitLab GitLab

    From 7.12 · fixed in 18.1.6; From 18.2 · fixed in 18.2.6; From 18.3 · fixed in 18.3.2

References 3

about.gitlab.com

gitlab.com

hackerone.com