org.keycloak:keycloak-services 26.8.0

Direct Vulnerabilities

Known vulnerabilities in the org.keycloak:keycloak-services package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability	Vulnerable Version
H Replay Attack 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 Replay Attack through IdP-initiated broker logins in the `services/src/main/java/org/keycloak/broker/saml` component. An attacker can hijack a user session and gain unauthorized access by resending a captured, valid SAML assertion that contains a `OneTimeUse` condition. When Keycloak accepts the assertion without tracking whether that assertion ID was already used, the same unused response can be replayed multiple times against the broker flow. This affects deployments using Keycloak as a SAML identity broker with IdP-initiated login enabled. How to fix Replay Attack? A fix was pushed into the `master` branch but not yet published.	[0,)
M Improper Verification of Cryptographic Signature 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 Improper Verification of Cryptographic Signature in the backchannel logout endpoint of the `keycloak-services` component. An attacker can force a user to log out by sending a logout request without a cryptographic signature when an OIDC identity provider is configured to skip signature validation. This lets the attacker disrupt the user’s active session and break access to applications until the user signs in again. How to fix Improper Verification of Cryptographic Signature? There is no fixed version for `org.keycloak:keycloak-services`.	[0,)
H Improper Validation of Consistency within Input 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 Improper Validation of Consistency within Input in the identity provider update flow for OIDC identity providers. An attacker can capture the existing client secret by sending an update as a delegated administrator that reuses the masked client secret sentinel value while changing security-sensitive settings such as the token URL. The vulnerable code path manages identity provider configuration updates in `keycloak-services`, and it accepts the update without forcing the secret to be revalidated against the changed endpoint. This lets the attacker redirect secret-bearing requests to an endpoint they control and expose the real client secret, breaking the confidentiality of the identity provider credentials. How to fix Improper Validation of Consistency within Input? A fix was pushed into the `master` branch but not yet published.	[2.4.0.CR1,)

Vulnerability

Vulnerable Version

Replay Attack

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 Replay Attack through IdP-initiated broker logins in the services/src/main/java/org/keycloak/broker/saml component. An attacker can hijack a user session and gain unauthorized access by resending a captured, valid SAML assertion that contains a OneTimeUse condition. When Keycloak accepts the assertion without tracking whether that assertion ID was already used, the same unused response can be replayed multiple times against the broker flow. This affects deployments using Keycloak as a SAML identity broker with IdP-initiated login enabled.

How to fix Replay Attack?

A fix was pushed into the master branch but not yet published.

[0,)

Improper Verification of Cryptographic Signature

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 Improper Verification of Cryptographic Signature in the backchannel logout endpoint of the keycloak-services component. An attacker can force a user to log out by sending a logout request without a cryptographic signature when an OIDC identity provider is configured to skip signature validation. This lets the attacker disrupt the user’s active session and break access to applications until the user signs in again.

How to fix Improper Verification of Cryptographic Signature?

There is no fixed version for org.keycloak:keycloak-services.

[0,)

Improper Validation of Consistency within Input

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 Improper Validation of Consistency within Input in the identity provider update flow for OIDC identity providers. An attacker can capture the existing client secret by sending an update as a delegated administrator that reuses the masked client secret sentinel value while changing security-sensitive settings such as the token URL. The vulnerable code path manages identity provider configuration updates in keycloak-services, and it accepts the update without forcing the secret to be revalidated against the changed endpoint. This lets the attacker redirect secret-bearing requests to an endpoint they control and expose the real client secret, breaking the confidentiality of the identity provider credentials.

How to fix Improper Validation of Consistency within Input?

A fix was pushed into the master branch but not yet published.

[2.4.0.CR1,)

org.keycloak:keycloak-services@26.8.0

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Direct Vulnerabilities

Fix vulnerabilities automatically