PT-2026-40867 · Gitlab · Gitlab

Published 2026-05-14 · Updated 2026-05-14 · CVE-2026-4527

Mitre

CVSS v3.1

6.5

Medium

Base vector

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to create unauthorized Jira subscriptions for a targeted user's namespace via a specially crafted link due to missing CSRF protection.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-4527

Affected Products

Gitlab

References · 4

• 🔥 https://hackerone.com/reports/3590487 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4527 · Security Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/594339 · Note
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released · Note