CVE-2023-3906

Public Exploit
Improper Validation of Specified Type of Input in GitLab

Description

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.

Remediation

Solution:

  • Upgrade to version 16.2.8, 16.3.5, 16.4.1 or above

Category

3.5
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.21%
Vendor Advisory gitlab.com
Affected: GitLab GitLab
Published at:
Updated at:

References

Link Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/419213 vendor advisory issue tracking
https://hackerone.com/reports/2071411 broken link exploit permissions required technical description

Frequently Asked Questions

What is the severity of CVE-2023-3906?
CVE-2023-3906 has been scored as a low severity vulnerability.
How to fix CVE-2023-3906?
To fix CVE-2023-3906: Upgrade to version 16.2.8, 16.3.5, 16.4.1 or above
Is CVE-2023-3906 being actively exploited in the wild?
It is possible that CVE-2023-3906 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-3906?
CVE-2023-3906 affects GitLab GitLab.
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