CVE-2023-2199

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.0 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 1.47% Top 25%
Vendor Advisory gitlab.com
Affected: GitLab GitLab
Published at:
Updated at:

References

Link Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/408272 broken link
https://hackerone.com/reports/1943819 third party advisory permissions required
https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-2199.json vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-2199?
CVE-2023-2199 has been scored as a high severity vulnerability.
How to fix CVE-2023-2199?
To fix CVE-2023-2199, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-2199 being actively exploited in the wild?
It is possible that CVE-2023-2199 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-2199?
CVE-2023-2199 affects GitLab GitLab.
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