Bug 2482461 (CVE-2026-9794) - CVE-2026-9794 keycloak: Keycloak: Information disclosure via SAML ECP endpoint
Summary: CVE-2026-9794 keycloak: Keycloak: Information disclosure via SAML ECP endpoint
Keywords:
Status: NEW
Alias: CVE-2026-9794
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-28 03:17 UTC by OSIDB Bzimport
Modified: 2026-05-28 03:41 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-05-28 03:17:57 UTC 
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.
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