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.

References

https://hackerone.com/reports/3963293

https://gitlab.com/gitlab-org/gitlab/-/work_items/632207

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107674

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

Details

Source: Mitre, NVD

Published: 2026-10-22

Updated: 2026-10-22

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 3.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Severity: Low

EPSS

EPSS: 0.00212