PT-2026-48655 · Gitlab · Gitlab

Published 2026-06-11 · Updated 2026-06-11 · CVE-2026-8589

Mitre

CVSS v3.1

7.3

High

Base vector

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

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.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-8589

Affected Products

Gitlab

References · 4

• 🔥 https://hackerone.com/reports/3722842 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-8589 · Security Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/600099 · Note
• https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released · Note