org.keycloak/keycloak-services: Keycloak SAML brokering: Response delay due to unchecked NotOnOrAfter in SubjectConfirmationData

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language SAML setup, it fails to validate the NotOnOrAfter timestamp within the SubjectConfirmationData. This allows an attacker to delay the expiration of SAML...

Keycloak < 26.5.4 Multiple Vulnerabilities

Keycloak versions installed prior to 26.5.4 are affected by multiple vulnerabilities, including: - The Keycloak Authorization header parser is overly permissive regarding the formatting of the 'Bearer' authentication scheme. It accepts non-standard characters such as tabs as separators and...

GHSA-63V5-26VQ-M4VM Keycloak's missing timestamp validation allows attackers to extend SAML response validity periods

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language SAML setup, it fails to validate the NotOnOrAfter timestamp within the SubjectConfirmationData. This allows an attacker to delay the expiration of SAML...

Keycloak's missing timestamp validation allows attackers to extend SAML response validity periods

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language SAML setup, it fails to validate the NotOnOrAfter timestamp within the SubjectConfirmationData. This allows an attacker to delay the expiration of SAML...

CVE-2026-1190

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language SAML setup, it fails to validate the NotOnOrAfter timestamp within the SubjectConfirmationData. This allows an attacker to delay the expiration of SAML...

CVE-2026-1190 Org.keycloak/keycloak-services: keycloak saml brokering: response delay due to unchecked notonorafter in subjectconfirmationdata

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language SAML setup, it fails to validate the NotOnOrAfter timestamp within the SubjectConfirmationData. This allows an attacker to delay the expiration of SAML...

CVE-2026-1190

Summary: CVE-2026-1190 affects Keycloak when used as a SAML client; it fails to validate the NotOnOrAfter timestamp in SubjectConfirmationData, allowing an attacker to delay SAML response expiration and potentially extend valid session duration. What’s affected: Keycloak’s SAML brokering function...

CVE-2026-1190 Org.keycloak/keycloak-services: keycloak saml brokering: response delay due to unchecked notonorafter in subjectconfirmationdata

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language SAML setup, it fails to validate the NotOnOrAfter timestamp within the SubjectConfirmationData. This allows an attacker to delay the expiration of SAML...

CVE-2026-1190

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language SAML setup, it fails to validate the NotOnOrAfter timestamp within the SubjectConfirmationData. This allows an attacker to delay the expiration of SAML...

PT-2026-4811

A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language SAML setup, it fails to validate the NotOnOrAfter timestamp within the SubjectConfirmationData. This allows an attacker to delay the expiration of SAML...

Missing XML Validation

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Missing XML Validation of the NotOnOrAfter timestamp in SubjectConfirmationData when SAML is configured to ac...

Keycloak security vulnerabilities

Keycloak is an open-source identity and access management solution developed by Keycloak. Keycloak has a security vulnerability that stems from the lack of checking the value “NotOnOrAfter” in SubjectConfirmationData, which may lead to delayed responses...

Insufficient Session Expiration

@node-saml/node-saml is vulnerable to Insufficient Session Expiration. The vulnerability exists due to the lack of validation checks of the current timestamp in the processValidlySignedPostRequestAsync function of saml.ts, which allows an attacker to reuse LogoutRequest XML multiple times even wh...

PT-2023-27307 · Node-Saml · Node-Saml

Name of the Vulnerable Software and Affected Versions: Node-SAML versions prior to 4.0.5 Description: The lack of checking of the current timestamp allows a LogoutRequest XML to be reused multiple times even when the current time is past the NotOnOrAfter. This could impact the user where they wou...