CVE-2026-4527

6.5 mediumEPSS 0.2%

Medium (6.5) in gitlab gitlab. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.5 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
CWE: CWE-352
Published: 2026-05-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gitlab:gitlab

References

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/594339
https://hackerone.com/reports/3590487

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