CVE-2026-8589 HIGH

CVE-2026-8589: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-79 · XSS
Published June 11, 2026
Last update June 11, 2026
View on NVD All CVEs

CVSS base score

7.3/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 11, 2026 CVE published
June 11, 2026 Record updated