CVE-2025-12664

Received Received - Intake

Denial of Service via GraphQL in GitLab CE/EE

Publication date: 2026-04-08

Last updated on: 2026-04-14

Assigner: GitLab Inc.

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 Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-08

Last Modified

2026-04-14

Generated

2026-07-06

AI Q&A

2026-04-09

EPSS Evaluated

2026-07-05

NVD

CVE-2025-12664

EUVD

EUVD-2025-209365

Affected Vendors & Products

Vendor	Product	Version / Range
gitlab	gitlab	From 13.0.0 (inc) to 18.8.9 (exc)
gitlab	gitlab	From 18.10.0 (inc) to 18.10.3 (exc)
gitlab	gitlab	From 18.9.0 (inc) to 18.9.5 (exc)
gitlab	gitlab	From 18.9.0 (inc) to 18.9.5 (exc)
gitlab	gitlab	From 18.10.0 (inc) to 18.10.3 (exc)
gitlab	gitlab	From 13.0.0 (inc) to 18.8.9 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-1284	The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

Attack-Flow Graph

Executive Summary

This vulnerability in GitLab CE/EE affects versions from 13.0 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3. It allows an unauthenticated user to cause a denial of service (DoS) by sending repeated GraphQL queries.

Impact Analysis

The impact of this vulnerability is a denial of service condition, meaning that an attacker can disrupt the availability of the GitLab service by sending repeated GraphQL queries without needing to authenticate.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version. Specifically, update to version 18.8.9 or later if you are using the 18.8 series, 18.9.5 or later for the 18.9 series, or 18.10.3 or later for the 18.10 series.

These updates address the issue where an unauthenticated user could cause a denial of service by sending repeated GraphQL queries.

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