Authorization Flaw in GitLab CE/EE by GitLab
CVE-2026-5796

4.3MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
25 June 2026

What is CVE-2026-5796?

An authorization flaw in GitLab CE/EE could allow authenticated users with Reporter-level group permissions to inadvertently access package metadata from projects where the Package Registry is disabled. This issue arises from improper authorization checks within the group packages feature, potentially exposing sensitive information.

Affected Version(s)

GitLab 13.6 < 18.11.6

GitLab 19.0 < 19.0.3

GitLab 19.1 < 19.1.1

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/596035
https://hackerone.com/reports/3646902
technical-descriptionexploitpermissions-required
https://docs.gitlab.com/releases/patches/patch-release-gi...

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