CVE-2025-12669

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.

Score

CVSS 3.1 5.4 Medium

Status

Analyzed - cve@gitlab.com

Published

2026-05-14

Last modified

2026-10-14

Weaknesses

CWE-94

Affected products

• Gitlab (Gitlab)

References

• https://hackerone.com/reports/3368096
• https://gitlab.com/gitlab-org/gitlab/-/work_items/579385
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/