CVE-2026-105711

Use of Cache Containing Sensitive Information in GitLab

Published Oct 21, 2026 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Upgrade to versions 19.3.6, 19.4.3, 19.5.1 or above.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:19.5.0:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:19.5.0:*:*:*:enterprise:*:*:*
Type Values Removed Values Added
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.
Title Use of Cache Containing Sensitive Information in GitLab
First Time appeared Gitlab
Gitlab gitlab
Weaknesses CWE-524
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Vendors & Products Gitlab
Gitlab gitlab
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitLab
Published
Updated
Oct 30, 2026, 5:18 PM
Reserved
Oct 5, 2026, 6:35 PM
Status
Analyzed
Published
Oct 22, 2026, 1:16 AM
Modified
Nov 4, 2026, 11:10 PM