CVE-2026-7307 — Keycloak: keycloak: denial of service via specially crafted saml input
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…
Published: 2026-05-19 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7