CVE-2026-3074

Authorization Bypass Through User-Controlled Key in GitLab

State: Published
Severity: 4.3 Medium
Published: May 14, 2026
Updated: May 14, 2026
Reserved: Feb 23, 2026

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to download private debugging symbols from inaccessible projects due to improper access control.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N	GitLab

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
GitLabGitLab	16.7 to before 18.9.7Affected 18.10 to before 18.10.6Affected 18.11 to before 18.11.3Affected

References

HackerOne Bug Bounty Report #3556163technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/591229
https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

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