CVE-2026-5309 PUBLISHED

Authorization Bypass Through User-Controlled Key in GitLab

Assigner: GitLab
Reserved: 01.04.2026 Published: 25.06.2026 Updated: 25.06.2026

GitLab has remediated an issue in GitLab EE affecting all versions from 18.6 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user to read or modify another group's virtual registry cleanup policy settings without authorization.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS Score: 5.4

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	GitLab
Product	GitLab
Versions	Default: unaffected affected from 18.6 to 18.11.6 (excl.) affected from 19.0 to 19.0.3 (excl.) affected from 19.1 to 19.1.1 (excl.)

Solutions

Upgrade to versions 18.11.6, 19.0.3, 19.1.1 or above.

Credits

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

References

Problem Types

CWE-639: Authorization Bypass Through User-Controlled Key CWE