CVE-2026-9794 — Keycloak: keycloak: information disclosure via saml ecp endpoint
A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP (Security Assertion Ma…
Published: 2026-05-28 · CVSS: 5.3 · CVSS 3.1
A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP (Security Assertion Markup Language Enhanced Client or Proxy) endpoint with varying client IDs. By observing distinct faultstrings in the responses, the attacker can determine the client's protocol type, leading to information disclosure.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7