Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.6 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to, under certain conditions, render content in dialogs to other users by injecting malicious HTML content into merge request titles.

INFO

Published Date :

2025-12-11T07:32:01.735Z

Last Modified :

2025-12-16T23:44:05.510Z

Source :

GitLab
AFFECTED PRODUCTS

The following products are affected by CVE-2025-12734 vulnerability.

Vendors Products
Gitlab
  • Gitlab
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-12734.

URL Resource
https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/ cve-icon cve-icon
https://gitlab.com/gitlab-org/gitlab/-/issues/579573 cve-icon cve-icon
https://hackerone.com/reports/3379381 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact