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This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
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.
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New CVE Received from Red Hat, Inc.8/05/2026 10:17:03 AM
Action
Type
Old Value
New Value
Added
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.
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Quick Info
CVE Dictionary Entry: CVE-2026-16443 NVD
Published Date: 08/05/2026 NVD
Last Modified: 08/05/2026
Source: Red Hat, Inc.
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