CVE-2026-15723

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when OmniAuth SAML and LDAP…

• Severity: High
• CVSS 8.2
• EPSS 0.33%
• P3 · Planned

Why P3: planned.

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when OmniAuth SAML and LDAP auto-linking were both enabled, an authenticated user could have taken over an existing LDAP-backed account without any interaction from the targeted user, due to improper input sanitization in the LDAP email lookup path used during OmniAuth identity linking.

Weakness

• CWE-90

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

References

• NVD record NVD
• CVE Program record CVE Program
• Reference NVD
• Reference NVD
• Reference NVD
• GitHub security advisory GitHub
• Advisory reference GitHub

Published 2026-10-22 · sources: NVD, GitHub Advisory Database