UpHeron
All vulnerabilities

Servers and applications

CVE-2026-12910

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an authenticated user to bypass SAML SSO sign-in restrictions and authenticate without SSO due to missing authentication enforcement checks.

Severity
Medium 5.4
Published
15 Sept 2026
Last changed
28 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
19.1.8, 19.2.6, 19.3.2
Sources
NVD

Affected software

SoftwareAffected versions
GitLabServers and applications · cpe:a:gitlab:gitlab
  • From 18.6.0 before 19.1.8
  • From 19.2.0 before 19.2.6
  • From 19.3.0 before 19.3.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-12910
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-12910