| Package | Affected versions | Patched versions |
|---|---|---|
| org.keycloak:keycloak-saml-core | < 26.6.2 | 26.6.2 |
| build of keycloak | ≥ 26.4, < 26.4.12 | 26.4.12 |
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.
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