Vulnerability in GitLab
CVE-2023-3906
An input validation issue in the asset proxy in GitLab EE, affecting all versions from 12.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1, allowed an authenticated attacker to craft image urls which bypass the asset proxy.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (44.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% 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: 0.006 · change: +0.001
Affected products
- GitLab — versions 16.4, 16.4.0, 12.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- GitLab Issue #419213 (issue-tracking, Issue Tracking, Vendor Advisory)
- HackerOne Bug Bounty Report #2071411 (Permissions Required, technical-description, permissions-required, exploit, broken-link)
Frequently asked questions
- What is CVE-2023-3906?
- CVE-2023-3906 is a low-severity vulnerability in GitLab, classified under CWE-1287. CVSS score: 3.5/10. Published 2023-09-29.
- How severe is CVE-2023-3906?
- Low severity. CVSS v3 base score is 3.5 out of 10.
- Is CVE-2023-3906 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.