High severity · published Apr 8, 2026
CVE-2025-12664
Improper Validation of Specified Quantity in Input in GitLab
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.0 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an unauthenticated user to cause denial of service by sending repeated GraphQL queries.
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)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
13.0 before 18.8.9; 18.9 before 18.9.5; 18.10 before 18.10.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-12664
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-12664
Release Notes
https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/work_items/579376
Permissions Required
https://hackerone.com/reports/3377091
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