CVE-2026-16275

Incorrect Authorization in GitLab

State: Published
Severity: 5.3 Medium
Published: Oct 13, 2026
Updated: Oct 14, 2026
Reserved: Jul 20, 2026

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.4 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an unauthenticated user to read confidential notes on public projects due to incorrect authorization checks.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	GitLab

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
GitLabGitLab	17.4 to before 19.2.8Affected 19.3 to before 19.3.5Affected 19.4 to before 19.4.2Affected

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/606490
HackerOne Bug Bounty Report #3815259technical-descriptionexploitpermissions-required
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/

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