CVE-2023-6489

Public Exploit
Inefficient Regular Expression Complexity in GitLab

Description

A denial of service vulnerability was identified in GitLab CE/EE, versions 16.7.7 prior to 16.8.6, 16.9 prior to 16.9.4 and 16.10 prior to 16.10.2 which allows an attacker to spike the GitLab instance resources usage resulting in service degradation via chat integration feature.

Remediation

Solution:

  • Upgrade to versions 16.8.6, 16.9.4, 16.10.2 or above.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.08%
Affected: GitLab GitLab
Published at:
Updated at:

References

Link Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/433520 issue tracking broken link permissions required
https://hackerone.com/reports/2262450 broken link exploit permissions required technical description

Frequently Asked Questions

What is the severity of CVE-2023-6489?
CVE-2023-6489 has been scored as a medium severity vulnerability.
How to fix CVE-2023-6489?
To fix CVE-2023-6489: Upgrade to versions 16.8.6, 16.9.4, 16.10.2 or above.
Is CVE-2023-6489 being actively exploited in the wild?
It is possible that CVE-2023-6489 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-2023-6489?
CVE-2023-6489 affects GitLab GitLab.
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