CVE-2026-6073

high

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to execute arbitrary JavaScript in other users' browsers due to improper input sanitization.

References

https://hackerone.com/reports/3655677

https://gitlab.com/gitlab-org/gitlab/-/work_items/596340

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

Details

Source: Mitre, NVD

Published: 2026-05-14

Updated: 2026-05-14

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 8.7

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

Severity: High

EPSS

EPSS: 0.00019