CVE-2026-16301

Published: Oct 13, 2026Modified: Oct 14, 2026

8.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N

Exploitability: 3.1 / Impact: 4.7

Source: cve@gitlab.com (Secondary)

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 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 authenticated user with Developer role to execute CI/CD pipelines on protected branches without authorization due to improper authorization checks in the downstream pipeline creation service.

Affected (6)

Products: Gitlab: Gitlab

Gitlab

1 product

Gitlab

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Gitlab Gitlab	18.7.0 ≤ version < 19.2.8
Gitlab Gitlab	19.3.0 ≤ version < 19.3.5
Gitlab Gitlab	19.4.0 ≤ version < 19.4.2
Gitlab Gitlab	18.7.0 ≤ version < 19.2.8
Gitlab Gitlab	19.3.0 ≤ version < 19.3.5
Gitlab Gitlab	19.4.0 ≤ version < 19.4.2

Related CWEs

CWE-863

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (3)

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/

Source: cve@gitlab.com

Release NotesVendor Advisory

https://gitlab.com/gitlab-org/gitlab/-/work_items/606501

Source: cve@gitlab.com

Issue Tracking

https://hackerone.com/reports/3853866

Source: cve@gitlab.com

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Timeline

No history available yet.