High severity · published Nov 26, 2025
CVE-2025-12571
Allocation of Resources Without Limits or Throttling in GitLab
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
17.10 before 18.4.5; 18.5 before 18.5.3; 18.6 before 18.6.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-12571
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-12571
about.gitlab.com
https://about.gitlab.com/releases/2025/11/26/patch-release-gitlab-18-6-1-released/
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/579168
Permissions Required
https://hackerone.com/reports/3362239
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