CVE-2026-10086

GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input.

CVSS v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/	Patch Release Notes Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/601634	Broken Link
https://hackerone.com/reports/3734800	Permissions Required

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:19.1.0::::enterprise:::

History

26 Jun 2026, 18:36

Type	Values Removed	Values Added
CPE		cpe:2.3:a:gitlab:gitlab:::::enterprise:::* cpe:2.3:a:gitlab:gitlab:19.1.0::::enterprise:::
First Time		Gitlab Gitlab gitlab
References	~~() https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/ -~~	() https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/ - Patch, Release Notes, Vendor Advisory
References	~~() https://gitlab.com/gitlab-org/gitlab/-/work_items/601634 -~~	() https://gitlab.com/gitlab-org/gitlab/-/work_items/601634 - Broken Link
References	~~() https://hackerone.com/reports/3734800 -~~	() https://hackerone.com/reports/3734800 - Permissions Required

25 Jun 2026, 05:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-25 05:16

Updated : 2026-06-26 18:36

NVD link : CVE-2026-10086

Mitre link : CVE-2026-10086

CVE.ORG link : CVE-2026-10086

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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