Authorization Flaw in GitLab EE Allows Access to Sensitive Deployment Data
CVE-2026-2601

4.3MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
27 May 2026

What is CVE-2026-2601?

An issue in GitLab EE permits authenticated users with developer-role permissions to potentially access sensitive deployment data. This vulnerability arises from insufficient authorization checks, which allow certain users to bypass intended restrictions and view deployment data that should remain private. GitLab has released patches to address this issue, emphasizing the importance of updating to the latest version to mitigate associated risks.

Affected Version(s)

GitLab 11.5 < 18.10.7

GitLab 18.11 < 18.11.4

GitLab 19.0 < 19.0.1

References

https://hackerone.com/reports/3556381
technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/590389
https://about.gitlab.com/releases/2026/05/27/patch-releas...

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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