Improper Authorization in GitLab CE/EE Affects Project Management
CVE-2026-1663

4.3MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
11 March 2026

What is CVE-2026-1663?

A vulnerability in GitLab CE/EE affects multiple versions, allowing authenticated users with group import permissions to create labels in private projects. This issue arises due to inadequate authorization validation in the group import process, which could lead to unauthorized modifications within private project settings. Users are advised to update to the latest versions to mitigate this risk and enhance their project security.

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Affected Version(s)

GitLab 14.4 < 18.7.6

GitLab 18.8 < 18.8.6

GitLab 18.9 < 18.9.2

References

https://hackerone.com/reports/3485548
technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/588207
https://about.gitlab.com/releases/2026/03/11/patch-releas...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program
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