Vulnerability in GitLab
CVE-2023-3364
An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.14 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use AutolinkFilter to the preview_markdown endpoint.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.445 (98.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.445 · newest: 0.445 · change: 0.000
Affected products
- GitLab — versions 8.14, 16.1, 16.2
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/415995 (issue-tracking, Broken Link)
- hackerone.com/reports/1959727 (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2023-3364?
- CVE-2023-3364 is a high-severity vulnerability in GitLab, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2023-08-02.
- How severe is CVE-2023-3364?
- High severity. CVSS v3 base score is 7.5 out of 10.