CVE-2025-12653
Authentication Bypass by Spoofing in GitLab
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
26 Nov 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that under specific conditions could have allowed an unauthenticated user to join arbitrary organizations by changing headers on some requests.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
GitLab · GitLabWant to know if your infrastructure is exposed to this?
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