Main Vulnerability Database Vulnerabilities #VU58755

Permissions, Privileges, and Access Controls in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2021-39937

Published: December 9, 2021

Vulnerability identifier: #VU58755

CSH Severity: Medium

CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-39937

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote authenticated attacker to escalate privileges on the system.

The vulnerability exists due to a collision in access memoization logic, which leads to security restrictions bypass and privilege escalation.

Gitlab Community Edition
GitLab Enterprise Edition
Arch Linux

Install updates from vendor's website.

Gitlab Community Edition - addressed in versions 14.3.6, 14.4.4, 14.5.2
GitLab Enterprise Edition - addressed in versions 14.3.6, 14.4.4, 14.5.2