UpHeron
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Servers and applications

CVE-2025-12571

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an unauthenticated user to cause a Denial of Service condition by sending specifically crafted requests containing malicious JSON payloads.

Severity
High 7.5
Published
26 Nov 2025
Last changed
18 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
18.4.5, 18.5.3
Sources
NVD

Affected software

SoftwareAffected versions
GitLabServers and applications · cpe:a:gitlab:gitlab
  • From 17.10.0 before 18.4.5
  • From 18.5.0 before 18.5.3
  • Version 18.6.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-12571
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-12571