CVE-2026-15723
highGitLab 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 S…
Vendor / product: Gitlab — gitlab
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.
CVSS
8.2
8.2 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N Severity source: NVD CVSS v3.1 (cve@gitlab.com)
Timeline (UTC)
Published: 2026-10-22 01:16
Modified: 2026-10-27 14:09
NVD status: Analyzed
Last synced 19 hours ago
Verified against the source API 2026-10-28 11:30 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
gitlab / gitlab ≥10.1.0 <19.3.6, ≥19.4.0 <19.4.3, 19.5.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/ cve@gitlab.com
- https://gitlab.com/gitlab-org/gitlab/-/work_items/605977 cve@gitlab.com
- https://hackerone.com/reports/3852192 cve@gitlab.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 11:30 UTC · record ↗