CVE-2026-4879 PUBLISHED

Missing Authorization in GitLab

Assigner: GitLab
Reserved: 26.03.2026 Published: 12.08.2026 Updated: 13.08.2026

GitLab has remediated an issue in GitLab EE affecting all versions from 16.0 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to view external status check configuration restricted to higher-privileged roles due to missing authorization on a merge request API endpoint.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 4.3

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

CVSS 3.1

Product Status

Vendor	GitLab
Product	GitLab
Versions	Default: unaffected affected from 16.0 to 19.0.6 (excl.) affected from 19.1 to 19.1.4 (excl.) affected from 19.2 to 19.2.2 (excl.)

Solutions

Upgrade to versions 19.0.6, 19.1.4, 19.2.2 or above.

Credits

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

References

Problem Types

CWE-862: Missing Authorization CWE