PT-2026-52199 · Gitlab · Gitlab

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-12635

Mitre

CVSS v3.1

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:N

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with maintainer-role permissions to make requests to internal network resources through mirror synchronization due to improper URL validation.

Fix

Weakness Enumeration

CWE-350

Related Identifiers

CVE-2026-12635

Affected Products

Gitlab

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-12635 · Security Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/594321 · Note
• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released · Note