CVE-2026-5173

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9.6 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to invoke unintended server-side methods through websocket connections due to improper access control.

CVSS v3 8.5 HIGH

8.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/	Release Notes Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/588959	Broken Link

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

History

16 Apr 2026, 16:44

Type	Values Removed	Values Added
CPE		cpe:2.3:a:gitlab:gitlab:::::enterprise:::* cpe:2.3:a:gitlab:gitlab:::::community:::*
First Time		Gitlab Gitlab gitlab
References	~~() https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/ -~~	() https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/ - Release Notes, Vendor Advisory
References	~~() https://gitlab.com/gitlab-org/gitlab/-/work_items/588959 -~~	() https://gitlab.com/gitlab-org/gitlab/-/work_items/588959 - Broken Link

08 Apr 2026, 23:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-08 23:17

Updated : 2026-04-16 16:44

NVD link : CVE-2026-5173

Mitre link : CVE-2026-5173

CVE.ORG link : CVE-2026-5173

JSON object : View

Products Affected

gitlab

gitlab

CWE

CWE-749

Exposed Dangerous Method or Function

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