CVE-2026-105711

Low

Description

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.

SeverityLow

CVSS3.5

Exploit probability—

Product

Gitlab

PublishedOct 22, 2026

First seenOct 22, 2026

Weakness typeCWE-524CWE-524

How to fix

Update

gitlab gitlab19.3.6, 19.4.3 or later

Vendor advisories

docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/

Affected products

Product	Affected versions	Fixed in
gitlab gitlab	15.0.0 ≤ v < 19.3.6, 19.4.0 ≤ v < 19.4.3, 19.5.0	19.3.6, 19.4.3

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