org.keycloak:keycloak-services@24.0.3 vulnerabilities

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 Incorrect User Management in oidc/OrganizationMembershipMapper.java, which relies on matching the domain of a user's email address to map them to an organization. A user can make an unauthorized token claim including association with an organization that they are not actually mapped to. If self-registration is enabled and unrestricted, this is easier to exploit.

Upgrade org.keycloak:keycloak-services to version 26.1.3 or higher.

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 Exposure of Sensitive Information Through Environmental Variables through user-configurable URLs.

Exploiting this vulnerability is possible with the configuration of backchannel logout URLs or admin URLs, when including placeholders like ${env.VARNAME} or ${PROPNAME}, which are replaced with actual values during URL processing. An attacker can access sensitive server environment variables and system properties.

Upgrade org.keycloak:keycloak-services to version 26.0.8 or higher.

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 Denial of Service (DoS) by modification of security headers and inserting newlines. An attacker can cause the server to process a terminated request, leading to service failure.

Note: This is only exploitable if the attacker can change realm settings.

Upgrade org.keycloak:keycloak-services to version 26.0.8 or higher.

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 External Control of File Name or Path. An attacker could read sensitive information from a Vault file that is not within the expected context by exploiting this vulnerability.

Note:

This is only exploitable if the attacker has previous high access to the Keycloak server in order to perform resource creation.

Upgrade org.keycloak:keycloak-services to version 26.0.6 or higher.

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 Regular Expression Denial of Service (ReDoS) via the SearchQueryUtils method due to improper input sanitization. An attacker could exhaust system resources and achieve denial of service by exploiting this vulnerability.

Upgrade org.keycloak:keycloak-services to version 26.0.6 or higher.

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 HTTP Request Smuggling due to improper handling of proxy headers resulting in costly DNS resolution operations. An attacker could tie up IO threads and potentially cause a denial of service by exploiting these operations.

Notes:

1. This is only exploitable if the attacker has access to send requests to a Keycloak instance that is configured to accept proxy headers, specifically when reverse proxies do not overwrite incoming headers, and Keycloak is configured to trust these headers.

2. For versions 26.x, this is only exploitable if the realm must have SslRequired=EXTERNAL (the default), HTTP must be enabled, the instance must not be using a full hostname URL, access must come from behind a proxy (assuming the proxy overwrites the X-Forwarded-For header), and trusted proxies must not be set or must incorrectly trust the client from which the request is originating.

Upgrade org.keycloak:keycloak-services to version 26.0.6 or higher.

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 Open Redirect due to a misconfiguration flaw in the validation of redirect URIs. An attacker can redirect users to an arbitrary URL and potentially expose sensitive information such as authorization codes, leading to session hijacking. Exploiting this vulnerability is possible if a Valid Redirect URI is set to http://localhost/ or http://127.0.0.1/.

Upgrade org.keycloak:keycloak-services to version 22.0.13, 24.0.8, 25.0.6 or higher.

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 URL Redirection to Untrusted Site ('Open Redirect') due to a misconfiguration flaw in the validation of redirect URIs. An attacker can redirect users to an arbitrary URL and potentially expose sensitive information such as authorization codes, leading to session hijacking.

Note: This is only exploitable if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1.

Upgrade org.keycloak:keycloak-services to version 22.0.13, 24.0.8, 25.0.6 or higher.

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 Open Redirect via the referrer and referrer_uri parameters. This allows an attacker who can convince an admin user to follow a malicious link - which may be further obfuscated by means such as URL encoding - to be redirected to a malicious location.

Upgrade org.keycloak:keycloak-services to version 25.0.0 or higher.

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 Privilege Management via the admin REST API endpoints. An attacker with low privileges can perform actions reserved for administrators, potentially leading to data breaches or system compromise by exploiting administrative functionalities without proper authorization.

Upgrade org.keycloak:keycloak-services to version 24.0.5 or higher.

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 Insecure Storage of Sensitive Information through PAR (Pushed authorization request) clients when using client_secret_post based authentication. This vulnerability derived from client-provided parameters that were included in plain text within the KC_RESTART cookie, which the authorization server returned in its HTTP response to a request_uri authorization request.

To exploit this vulnerability, an attacker needs to intercept the HTTP response from the authorization server, which might result in the disclosure of sensitive information.

Note

If you use OIDC confidential clients together with PAR and use client authentication based on client_id and client_secret sent as parameters in the HTTP request body (method client_secret_post specified in the OIDC specification), it is highly encouraged to rotate your clients' client secrets after upgrading to this version.

Upgrade org.keycloak:keycloak-services to version 24.0.5 or higher.