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

25 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) GitLab ha remediado un problema en GitLab EE que afecta a todas las versiones desde la 16.4 anterior a la 18.11.6, la 19.0 anterior a la 19.0.3 y la 19.1 anterior a la 19.1.1 que bajo ciertas condiciones podría haber permitido a un usuario autenticado con permisos de rol de desarrollador ejecutar código arbitrario del lado del cliente en el contexto de la sesión de otro usuario, debido a una sanitización inadecuada de la entrada proporcionada por el usuario.

Information

Published : 2026-06-25 05:16

Updated : 2026-10-25 23:10

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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