CVE-2026-9807

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/	Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/590694	Broken Link
https://hackerone.com/reports/3554993	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:19.0.0::::community:::
	cpe:2.3:a:gitlab:gitlab:19.0.0::::enterprise:::

History

29 May 2026, 16:40

Type	Values Removed	Values Added
First Time		Gitlab gitlab Gitlab
CPE		cpe:2.3:a:gitlab:gitlab:::::enterprise:::* cpe:2.3:a:gitlab:gitlab:::::community:::* cpe:2.3:a:gitlab:gitlab:19.0.0::::community::: cpe:2.3:a:gitlab:gitlab:19.0.0::::enterprise:::
References	~~() https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/ -~~	() https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/ - Release Notes
References	~~() https://gitlab.com/gitlab-org/gitlab/-/work_items/590694 -~~	() https://gitlab.com/gitlab-org/gitlab/-/work_items/590694 - Broken Link
References	~~() https://hackerone.com/reports/3554993 -~~	() https://hackerone.com/reports/3554993 - Permissions Required

28 May 2026, 09:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-28 09:16

Updated : 2026-05-29 16:40

NVD link : CVE-2026-9807

Mitre link : CVE-2026-9807

CVE.ORG link : CVE-2026-9807

JSON object : View

Products Affected

gitlab

gitlab

CWE

CWE-863

Incorrect Authorization

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