PT-2026-40852 · Gitlab · Gitlab

Published 2026-05-14 · Updated 2026-05-14 · CVE-2025-12669

NVD

CVSS v3.1

5.4

Medium

Base vector

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 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 inject HTML and JavaScript into email notifications sent to other users due to improper input sanitization.

Exploit

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2025-12669

Affected Products

Gitlab

References · 4

• 🔥 https://hackerone.com/reports/3368096 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-12669 · Security Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/579385 · Note
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released · Note