CVE-2026-4524

Authentication Bypass Using an Alternate Path or Channel in GitLab

State: Published
Severity: 6.5 Medium
Published: May 14, 2026
Updated: May 14, 2026
Reserved: Mar 20, 2026

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9.1 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to access confidential issue content in public projects without proper authorization due to improper authorization checks.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	GitLab

Weaknesses

CWE-288 Authentication Bypass Using an Alternate Path or Channel

Affected Products

Product	Versions
GitLabGitLab	18.9.1 to before 18.9.7Affected 18.10 to before 18.10.6Affected 18.11 to before 18.11.3Affected

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/594295
HackerOne Bug Bounty Report #3597717technical-descriptionexploitpermissions-required
https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

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