Medium severity · published May 14, 2026
CVE-2026-4527
Cross-Site Request Forgery (CSRF) in GitLab
6.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
11.10 before 18.9.7; 18.10 before 18.10.6; 18.11 before 18.11.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4527
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4527
Release Notes
https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/work_items/594339
Permissions Required
https://hackerone.com/reports/3590487
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