CVE-2026-103515

LOW 2.7

Incorrect Authorization in GitLab

CVSS Score

2.7

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-863
Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Oct 21, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

GitLab / GitLab

19.2 < 19.3.6 19.4 < 19.4.3 19.5 < 19.5.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/631564 hackerone.com: https://hackerone.com/reports/3871692 docs.gitlab.com: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/

Credits

Thanks [3nvz](https://hackerone.com/3nvz) for reporting this vulnerability through our HackerOne bug bounty program