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CVE PROGRAM SOURCE RECORD7.4 High

CVE-2026-16443

Keycloak-services: keycloak-services: saml broker metadata import disables response signature validation

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Status
Published
Published
Updated
Assigning organization
redhat

Description

A flaw was found in the SAML metadata import functionality of the keycloak-services component, which is the core engine for identity brokering in Red Hat Build of Keycloak. When importing identity provider metadata that lacks specific usage attributes for keys, the system incorrectly disables signature validation for SAML responses even if a signing certificate is provided. This issue allows an unauthenticated attacker to forge a SAML response and gain unauthorized access to a user account by knowing their external identifier.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat build of Keycloak 26.4

Default version status: affected

  • 26.4.14-1 to < *unaffected

Red Hat Red Hat build of Keycloak 26.4

Default version status: affected

  • 26.4-22 to < *unaffected

Red Hat Red Hat build of Keycloak 26.4

Default version status: affected

  • 26.4-22 to < *unaffected

Red Hat Red Hat build of Keycloak 26.4.14

Default version status: unaffected

Red Hat Red Hat build of Keycloak 26.4.14

Default version status: unaffected

Red Hat Red Hat build of Keycloak 26.6

Default version status: affected

  • 26.6.5-1 to < *unaffected

Red Hat Red Hat build of Keycloak 26.6

Default version status: affected

  • 26.6-11 to < *unaffected

Red Hat Red Hat build of Keycloak 26.6

Default version status: affected

  • 26.6-11 to < *unaffected

Red Hat Red Hat build of Keycloak 26.6.5

Default version status: unaffected

Red Hat Red Hat build of Keycloak 26.6.5

Default version status: unaffected

Red Hat Red Hat build of Keycloak 26.6.5

Default version status: unaffected

Red Hat Red Hat Data Grid 8

Default version status: unaffected

Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack

Default version status: unaffected

Red Hat Red Hat Single Sign-On 7

Default version status: unaffected

References