Unauthorized Edit Vulnerability in GitLab Product by GitLab Inc.
CVE-2026-1751

3.1LOW

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
2 February 2026

What is CVE-2026-1751?

A vulnerability has been found in GitLab CE/EE that enables unauthorized individuals to potentially alter merge request approval rules under specific conditions. This security flaw, present in all versions from 16.8 up to 18.4.9, could allow users to manipulate approvals without proper authorization, posing a significant risk to the integrity of the code review process.

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Affected Version(s)

GitLab 16.8 < 18.5.0

References

https://gitlab.com/gitlab-org/gitlab/-/issues/519340
issue-trackingpermissions-required
https://hackerone.com/reports/2980839
technical-descriptionexploitpermissions-required

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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