CVE-2025-12571
November 26, 2025
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.
Affected Packages
https://gitlab.com/gitlab-org/gitlab.git (SCM_GIT):
Affected version(s) >=v18.5.0-ee <v18.5.3-eeFix Suggestion:
Update to version v18.5.3-eehttps://gitlab.com/gitlab-org/gitlab.git (SCM_GIT):
Affected version(s) >=v13.2.0-ee <v18.4.5-eeFix Suggestion:
Update to version v18.4.5-eehttps://gitlab.com/gitlab-org/gitlab.git (SCM_GIT):
Affected version(s) =v18.6.0-ee <v18.6.1-eeFix Suggestion:
Update to version v18.6.1-eeRelated Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
EPSS
Base Score:
0.08
