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.

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.

EPSS: 0.005 (38.9th percentile) — read the EPSS interpretation.

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.

Affected products

Gitlab — versions 16.4, 16.4.0, 12.3

Weakness classification (CWE)

CWE-1287

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

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.