CVE-2026-4363 PUBLISHED

Incorrect Authorization in GitLab

Assigner: GitLab
Reserved: 17.03.2026 Published: 25.03.2026 Updated: 25.03.2026

GitLab has remediated an issue in GitLab EE affecting all versions from 18.1 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that under certain conditions could have allowed an authenticated user to gain unauthorized access to resources due to improper caching of authorization decisions.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
CVSS Score: 3.7

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

CVSS 3.1

Product Status

Vendor	GitLab
Product	GitLab
Versions	Default: unaffected affected from 18.1 to 18.8.7 (excl.) affected from 18.9 to 18.9.3 (excl.) affected from 18.10 to 18.10.1 (excl.)

Solutions

Upgrade to versions 18.8.7, 18.9.3, 18.10.1 or above.

Credits

This vulnerability has been discovered internally by GitLab team member Fred de Gier finder

References

Problem Types

CWE-863: Incorrect Authorization CWE