PT-2026-56589 · Gitlab · Gitlab

Published 2026-07-08 · Updated 2026-07-08 · CVE-2026-13320

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 CE/EE affecting all versions from 15.7 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to execute arbitrary scripts in another user's browser session due to improper sanitization of user-supplied input.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-13320

Affected Products

Gitlab

References · 4

• 🔥 https://hackerone.com/reports/3816917 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-13320 · Security Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/604063 · Note
• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-2-released · Note