CVE-2026-4527

MEDIUM EPSS 4.9%
Published May 14, 20261mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published May 14, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
4.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-352 Cross-Site Request Forgery (CSRF) Authentication

Affected Products 6

VendorProductVersionRange
gitlabgitlab*≥11.10.0  –  <18.9.7
gitlabgitlab*≥11.10.0  –  <18.9.7
gitlabgitlab*≥18.10.0  –  <18.10.6
gitlabgitlab*≥18.10.0  –  <18.10.6
gitlabgitlab*≥18.11.0  –  <18.11.3
gitlabgitlab*≥18.11.0  –  <18.11.3

References 3

  • about.gitlab.com https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/
    Release Notes
  • gitlab.com https://gitlab.com/gitlab-org/gitlab/-/work_items/594339
    Broken Link
  • hackerone.com https://hackerone.com/reports/3590487
    Permissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.