CVE-2026-3988

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to cause a denial of service by making the GitLab instance unresponsive due to improper input validation in GraphQL request processing.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/	Release Notes Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/593140	Broken Link
https://hackerone.com/reports/3597342	Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:18.10.0::::community:::
	cpe:2.3:a:gitlab:gitlab:18.10.0::::enterprise:::

History

No history.

Information

Published : 2026-03-25 17:17

Updated : 2026-03-26 17:42

NVD link : CVE-2026-3988

Mitre link : CVE-2026-3988

CVE.ORG link : CVE-2026-3988

JSON object : View

Products Affected

gitlab

gitlab

CWE

CWE-407

Inefficient Algorithmic Complexity

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