CVE-2026-8589

GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/	Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/600099	Issue Tracking
https://hackerone.com/reports/3722842	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:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*

History

11 Jun 2026, 17:28

Type	Values Removed	Values Added
References	~~() https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/ -~~	() https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/ - Release Notes
References	~~() https://gitlab.com/gitlab-org/gitlab/-/work_items/600099 -~~	() https://gitlab.com/gitlab-org/gitlab/-/work_items/600099 - Issue Tracking
References	~~() https://hackerone.com/reports/3722842 -~~	() https://hackerone.com/reports/3722842 - Permissions Required
First Time		Gitlab Gitlab gitlab
CPE		cpe:2.3:a:gitlab:gitlab:::::enterprise:::* cpe:2.3:a:gitlab:gitlab:::::community:::*

11 Jun 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-11 12:16

Updated : 2026-06-11 17:28

NVD link : CVE-2026-8589

Mitre link : CVE-2026-8589

CVE.ORG link : CVE-2026-8589

JSON object : View

Products Affected

gitlab

gitlab

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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