Access Control Vulnerability in GitLab EE Affecting Multiple Versions
CVE-2026-14288

3.1LOW

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
21 October 2026

What is CVE-2026-14288?

An access control issue in GitLab EE could allow authenticated users to bypass merge request approval requirements on protected branches. This vulnerability arises from improper access control management during the synchronization of approval rules, potentially putting the integrity of code submissions at risk. Users are encouraged to upgrade to the latest version where this issue has been remediated.

Affected Version(s)

GitLab 17.4 < 19.3.6

GitLab 19.4 < 19.4.3

GitLab 19.5 < 19.5.1

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/604630
https://hackerone.com/reports/3797008
technical-descriptionexploitpermissions-required
https://docs.gitlab.com/releases/patches/patch-release-gi...

CVSS V3.1

Score:
3.1
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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