GitLabCVE-2026-103515

GitLab: improper authorization

CVE-2026-103515 · Published Oct 22, 2026 · updated Oct 30, 2026

Low2.7

Fix: upgrade to 19.3.6 or later (3 fixed versions below)

GitLab has remediated an issue in GitLab EE affecting all versions from 19.2 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when an instance administrator locked a group's Duo availability, an authenticated user with group Owner permissions could have re-enabled AI-backed data egress to a third-party service for that group and its descendant projects, due to insufficient granularity of the admin-lock enforcement controls.

Affected versions

Package	Affected	Fixed in
GitLab Product	>= 19.2, < 19.3.6	19.3.6
	>= 19.4, < 19.4.3	19.4.3
	>= 19.5, < 19.5.1	19.5.1

Details and references

CVSS 3.1: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Severity from: the vendor (its own CVE record or advisory)
Weakness: CWE-863

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