CVE-2026-100755: gitlab gitlab

CVSS 4.6 (medium) · published 2026-10-13

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.

Affected products (NVD): gitlab gitlab

Fixed in (NVD): 19.2.8, 19.3.5, 19.4.2

Weakness: CWE-349

Source: NVD CVE-2026-100755

References

• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
• https://gitlab.com/gitlab-org/gitlab/-/work_items/627507

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