Auth bypass in Gitlab
CVE-2023-3964
An issue has been discovered in GitLab affecting all versions starting from 13.2 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for users to access composer packages on public projects that have package registry disabled in the project settings.
Vulnerability class: Broken Access Control
EPSS: 0.005 (37.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Gitlab — versions 13.2, 16.6.0, 16.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@gitlab.com (issue-tracking, permissions-required, Broken Link, Vendor Advisory)
- cve@gitlab.com (Permissions Required, technical-description, permissions-required, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2023-3964?
- CVE-2023-3964 is a medium-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2023-12-01.
- How severe is CVE-2023-3964?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2023-3964 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.