Auth bypass in GitLab
CVE-2023-4812
An issue has been discovered in GitLab EE affecting all versions starting from 15.3 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2. The required CODEOWNERS approval could be bypassed by adding changes to a previously approved merge request.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- GitLab — versions 15.3, 16.7, 16.7.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/gitlab-org/gitlab/-/issues/424398 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/2115574 (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2023-4812?
- CVE-2023-4812 is a high-severity vulnerability in GitLab, classified under Incorrect Authorization. CVSS score: 7.6/10. Published 2024-01-12.
- How severe is CVE-2023-4812?
- High severity. CVSS v3 base score is 7.6 out of 10.
- Is CVE-2023-4812 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.