CVE-2026-105711: GitLab 15.0 to before 19.3.6, 19.4 to before 19.4.3, 19.5 to before 19.5.1

Affected technology

GitLab · 15.0 to before 19.3.6, 19.4 to before 19.4.3, 19.5 to before 19.5.1
GitLab

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · User interaction required

What an attacker can do

The source says gitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.0 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when a merge request in a public project referenced a confidential issue from a private project, an authenticated user with no project membership could have read the confidential issue's title, due to a viewer-independent fragment cache key that incorrectly shared per-user-redacted rendered content across all users. Vendor/CNA’s CVSS 3.1 assessment (base score 3.5/10) rates confidentiality impact as low; integrity and availability impact as none.