Keycloak < 24.0.5 - Broken Access Control

A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API allow low-privilege users to access administrative functionalities. This flaw allows users to perform actions reserved for administrators, potentially leading to data breaches or system compromise. id: CVE-2024-3656 info...

CVE-2026-57817

A flaw was found in Apache CXF. When operating in the OpenID Connect Hybrid Flow, Apache CXF does not enforce the validation of the chash parameter. This vulnerability allows a remote attacker, through a non-compliant or misconfigured Identity Provider IdP, to perform Authorization Code...

CVE-2026-19278

CVE-2026-19278 concerns StackRox/RHACS Central. The flaw lies in the Auth Machine-to-Machine (M2M) token exchange where, during M2M role mapping, unanchored regular expressions are used to match claim values. This allows an attacker with a valid OpenID Connect (OIDC) token whose claim value is a ...

CVE-2026-18353

A flaw was found in PIA. An unauthenticated attacker can exploit a Server-Side Request Forgery SSRF vulnerability by crafting a malicious OpenID Connect OIDC issuer URL. This bypasses an internal allowlist due to inconsistent URL parsing between Python's urlparse and the requests/urllib3 librarie...

CVE-2026-63687

Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT e.g., one whose clientsecret is known or compromised can thereby substitute th...

CVE-2026-63687

Apache CXF JwtRequestCodeFilter exposes PKCE and OIDC replay protections by copying all claims from a signed request JWT into the authorization parameter map without excluding sensitive parameters. A adversary who can produce a validly-signed JWT (e.g., with a known/compromised client_secret) can...

EUVD-2026-53859

Apache CXF’s OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks issuer/subject/audience/time and subjwk binding, enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in...

CVE-2026-65583

Apache CXF is affected: the OIDC relying-party token validation can accept self-issued ID tokens without enforcing required claims (issuer/subject/audience/time, and sub_jwk binding), enabling authentication bypass with crafted tokens. This applies to CXF’s ID-token validation logic and is mitiga...

CVE-2026-57817

The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the chash parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider IdP that omits the chash, the RP becomes vulnerable to Authorization Code...

CVE-2026-57817 Apache CXF: The authorization code hash (c_hash) is not enforced for the hybrid OIDC flow

The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the chash parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider IdP that omits the chash, the RP becomes vulnerable to Authorization Code...

EUVD-2026-53855

The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the chash parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider IdP that omits the chash, the RP becomes vulnerable to Authorization Code...

CVE-2026-57817

The CVE concerns Apache CXF OpenID Connect RP integrations in Hybrid Flow, where the RP must validate the c_hash parameter per the OpenID Connect Core 1.0 spec. If an IdP is non-compliant or misconfigured and omits c_hash, the RP is vulnerable to Authorization Code Substitution/Injection attacks....

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...

keycloak: Keycloak: Security policy bypass in JWE-encrypted request object processing

A flaw was found in Keycloak. When a JSON Web Encryption JWE encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leadin...

keycloak: Keycloak: Security policy bypass in JWE-encrypted request object processing

A flaw was found in Keycloak. When a JSON Web Encryption JWE encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leadin...

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-2026-18569

A flaw was found in the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an OIDC identity provider is configured to skip signature...

CVE-2026-18569

The vulnerability CVE-2026-18569 affects the Red Hat Build of Keycloak, specifically the keycloak-services component’s backchannel logout endpoint. The root cause is when an OIDC identity provider is configured to skip signature validation, causing the system to accept logout requests with no cry...

CVE-2026-18569

A flaw was found in the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an OIDC identity provider is configured to skip signature...

CVE-2026-67333

better-auth before 1.6.13 and pre-release builds 1.7.0-beta.0 through 1.7.0-beta.3 fail to validate the scheme of redirecturis registered via the deprecated oidc-provider plugin and the mcp plugin which wraps the same provider. An attacker can register an OAuth client with a javascript:...