CVE-2024-5528: Incomplete Comparison with Missing Factors in GitLab

Severity: medium (CVSS 5.4 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: yes
Published: 2025-02-05 · updated 2026-06-17
Weakness: CWE-1023

Description

An issue was discovered in GitLab CE/EE affecting all versions prior to 16.11.6, starting from 17.0 prior to 17.0.4, and starting from 17.1 prior to 17.1.2, which allows a subdomain takeover in GitLab Pages.

Affected products

GitLab: before 16.11.6; from 17.0.0 before 17.0.4; from 17.1.0 before 17.1.2 — fixed in 16.11.6, 17.0.4, 17.1.2

How to fix

Upgrade to a fixed version: GitLab 16.11.6, 17.0.4, 17.1.2. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/464558
https://hackerone.com/reports/2523654
https://about.gitlab.com/releases/2024/07/10/patch-release-gitlab-17-1-2-released/

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