CVE-2026-7307
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
May 19, 2026
Vendor
unknown
Description
A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation, leading to a Denial of Service (DoS) where the server becomes unavailable.