CVE-2026-4527
Cross-Site Request Forgery (CSRF) in GitLab
6.5
MEDIUM
CVSS 3.1
EPSS 0.01%
Description
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.
How to fix CVE-2026-4527
To remediate CVE-2026-4527, upgrade the affected package to a fixed version below.
- —upgrade to 18.9.7 or later
Is CVE-2026-4527 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 11.10.0, < 18.9.7, >= 18.10.0, < 18.10.6, >= 18.11.0, < 18.11.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |