CVE-2026-15723

Published: Oct 22, 2026Modified: Oct 22, 2026

8.2

Vector

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

Exploitability: 1.8 / Impact: 5.8

Source: cve@gitlab.com (Secondary)

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.

Related CWEs

CWE-90

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.

References (3)

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/

Source: cve@gitlab.com

https://gitlab.com/gitlab-org/gitlab/-/work_items/605977

Source: cve@gitlab.com

https://hackerone.com/reports/3852192

Source: cve@gitlab.com

Timeline

No history available yet.