CVE-2026-100755

medium

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain deployment configurations, could have allowed an authenticated user to poison cached page content served to other users due to improper cache key construction.

References

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/

https://gitlab.com/gitlab-org/gitlab/-/work_items/627507

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-98211

Details

Source: Mitre, NVD

Published: 2026-10-13

Updated: 2026-10-13

Risk Information

CVSS v2

Base Score: 4.6

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

Severity: Medium

CVSS v3

Base Score: 4.6

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

Severity: Medium

EPSS

EPSS: 0.00085