Vulnerability record · CVE-2026-15723 · published 22 October 2026

CVE-2026-15723: Gitlab ldap injection vulnerability

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.

8.2 CVSS 3.1 High EPSS 0.54% · top 53.9% CWE-90 · LDAP injection

8.2CVSS 3.1 base score

0.54%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References

4 Nov 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Gitlab Gitlab

References

Link	Tags
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/	Release NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/605977	Permissions Required
https://hackerone.com/reports/3852192	Permissions Required

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-15723), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.