UpHeron
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Servers and applications

CVE-2023-3994

An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.

Severity
High 7.5
Published
2 Aug 2023
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
16.0.8, 16.1.3, 16.2.2
Sources
NVD

Affected software

SoftwareAffected versions
GitLabServers and applications · cpe:a:gitlab:gitlab
  • From 9.3 before 16.0.8
  • From 16.1 before 16.1.3
  • From 16.2 before 16.2.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-3994
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-3994