CVE-2026-18217 Keycloak-services: keycloak-services: saml http-redirect binding response preserves query string leading to parameter pollution

A flaw was found in the SAML protocol implementation of Keycloak, an open-source identity and access management solution. The issue occurs when Keycloak handles SAML authentication requests using the HTTP-Redirect binding. If a client is configured with a wildcard redirect URL, an attacker can...

CVE-2026-18217

CVE-2026-18217 affects Keycloak’s SAML protocol implementation, specifically when handling SAML authentication requests via HTTP-Redirect binding with wildcard redirect URLs. The root cause is a query-string handling flaw that allows an attacker to craft a request whose parameters are preserved a...

CVE-2026-18217 Keycloak-services: keycloak-services: saml http-redirect binding response preserves query string leading to parameter pollution

A flaw was found in the SAML protocol implementation of Keycloak, an open-source identity and access management solution. The issue occurs when Keycloak handles SAML authentication requests using the HTTP-Redirect binding. If a client is configured with a wildcard redirect URL, an attacker can...

CVE-2026-18209: Improper Validation of Consistency within Input

A flaw was found in the keycloak-services component of Keycloak, which handles OpenID Connect OIDC authentication flows. The issue occurs because the security check designed to prevent HTTP parameter pollution only inspects the query portion of a redirect URL and ignores the fragment portion. Whe...

PT-2026-66725

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw exists in the keycloak-services component of Keycloak regarding OpenID Connect OIDC authentication flows. The security check intended to prevent HTTP parameter pollution—a technique...

Improper Validation of Consistency within Input

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 Improper Validation of Consistency within Input during OIDC authentication flow processing. An attacker can...

PT-2026-49570

Name of the Vulnerable Software and Affected Versions Python-Multipart versions prior to 0.0.30 Description The QuerystringParser treated the semicolon ; as a field separator in application/x-www-form-urlencoded bodies, in addition to the ampersand &. This deviates from the WHATWG URL standard,...

Keycloak Services has Improper Validation of Consistency within Input

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

GHSA-WCVJ-VPVW-9RR5 Keycloak Services has Improper Validation of Consistency within Input

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

CVE-2026-9689

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

CVE-2026-9689 Keycloak: org.keycloak.protocol.oidc: http parameter pollution in oidc redirect uri allows response parameter duplication - #ghi-604

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

CVE-2026-9689 Keycloak: org.keycloak.protocol.oidc: http parameter pollution in oidc redirect uri allows response parameter duplication - #ghi-604

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

EUVD-2026-32212

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

CVE-2026-9689

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

CVE-2026-9689

CVE-2026-9689 affects Keycloak, an open-source identity and access management solution. The issue lies in the OIDC redirect URI handling when a client accepts broad redirect URIs, enabling an attacker to craft a special web address that could cause the client to prefer attacker-controlled informa...

CVE-2026-9689

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

PT-2026-55165

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

PT-2026-43682

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw in Keycloak, an open-source identity and access management solution, allows a remote attacker to manipulate the authentication process by crafting a special web address. This occurs...

CVE-2026-9689: Improper Validation of Consistency within Input

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers URIs, a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks...

Security Bulletin: DevOps Test Performance contains a vulnerability related to use of the form-data libary

Summary Due to use of the form-data library, DevOps Test Performance and Rational Performance Tester contain a potential HTTP Parameter Pollution HPP vulnerability CVE-2025-7783. Vulnerability Details CVEID:CVE-2025-7783 DESCRIPTION: Use of Insufficiently Random Values vulnerability in form-data...