CVE-2026-55839: Kestra vulnerable to stored XSS via custom Markdown [[link]] attribute injection

Ghostwire Analysis — What This Means Practically

• High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
• 2 proof-of-concept exploits available on GitHub. Public exploit code lowers the barrier for both researchers and attackers.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.