Vulnerability Monitor

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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.

Published

2025-11-26T20:15:47.943

Last Modified

2025-12-10T23:15:47.473

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Secondary
CWE-770

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gitlab	gitlab	< 18.4.5	Yes
Application	gitlab	gitlab	< 18.4.5	Yes
Application	gitlab	gitlab	< 18.5.3	Yes
Application	gitlab	gitlab	< 18.5.3	Yes
Application	gitlab	gitlab	18.6.0	Yes
Application	gitlab	gitlab	18.6.0	Yes

References

https://about.gitlab.com/releases/2025/11/26/patch-release-gitlab-18-6-1-released/ ([email protected])
https://gitlab.com/gitlab-org/gitlab/-/issues/579168 Broken Link ([email protected])
https://hackerone.com/reports/3362239 Permissions Required ([email protected])