CVE-2024-1525: Authentication Bypass Using an Alternate Path or Channel in GitLab

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-22 · updated 2026-06-17
Weakness: CWE-288

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.1 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. Under some specialized conditions, an LDAP user may be able to reset their password using their verified secondary email address and sign-in using direct authentication with the reset password, bypassing LDAP.

Affected products

GitLab: from 16.1 before 16.7.6; from 16.8 before 16.8.3; 16.9.0 — fixed in 16.7.6, 16.8.3

How to fix

Upgrade to a fixed version: GitLab 16.7.6, 16.8.3. Check the vendor advisory for mitigations.

References

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