GHSA-QQCJ-RGHW-829X Unity Catalog has a JWT Issuer Validation Bypass tht Allows Complete User Impersonation

Context: A critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to dynamically fetch the JWKS endpoint for signature validation without...

CVE-2026-33557

A flaw was found in Apache Kafka. By default, the sasl.oauthbearer.jwt.validator.class property is set to org.apache.kafka.common.security.oauthbearer.DefaultJwtValidator, which does not validate JSON Web Token JWT signatures, issuers, or audiences. A remote attacker can exploit this by crafting ...

Potential Security Misconfiguration when Using withIssuerLocation

When an application configures JWT decoding with NimbusJwtDecoder or NimbusReactiveJwtDecoder , it must configure an OAuth2TokenValidator separately, for example by calling setJwtValidator . This is easy to miss when using NimbusJwtDecoderwithIssuerLocation or...

CVE-2026-27478

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

CVE-2026-27478

CVE-2026-27478 relates to Unity Catalog (0.4.0 and earlier). The vulnerability is a critical authentication bypass in the token exchange endpoint at /api/1.0/unity-control/auth/tokens, where the issuer (iss) claim from incoming JWTs is used to dynamically fetch the JWKS endpoint for signature val...

CVE-2026-27478 Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

CVE-2026-27478 Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the IdTokenGrantParams.getProvider issuer validation logic in the Apple and Azure provider handlers. An attacker can obtain valid sessions for arbitrary users by submitting crafted ID tokens that bypass issuer...

Apache Camel: KeycloakSecurityPolicy does not validate issuer of JWT tokens against configured realm

Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss issuer claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy...

CVE-2026-23552

Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss issuer claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy...

CVE-2026-23552 Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy

Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss issuer claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy...

CVE-2026-23552 Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy

Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss issuer claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy...

CVE-2026-23552

Summary: CVE-2026-23552 describes an authentication bypass in Apache Camel’s Camel-Keycloak integration via the KeycloakSecurityPolicy. Affected software: Apache Camel versions 4.15.0 through 4.17.9 (per the CVE entry and related Nessus/Red Hat entries). Root cause (as stated): The KeycloakSecuri...

CVE-2026-23552 Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy

Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss issuer claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy...

Exploit for CVE-2026-23552

CVE-2026-23552 - Cross-Realm Token Acceptance in camel-keycloa...

Cache Poisoning

get-jwks is vulnerable to cache poisoning. The vulnerability is due to a design flaw where the iss issuer claim may be validated only after keys are retrieved from a shared JWKS cache, which allows an attacker to push a chosen public key into the cache with one crafted JWT and then reuse that...

EUVD-2018-0791

Malware in sbrugna...

EUVD-2025-31349

Malicious code in bioql PyPI...

EUVD-2022-4881

Malicious code in bioql PyPI...

CVE-2025-59936

get-jwks contains fetch utils for JWKS keys. In versions prior to 11.0.2, a vulnerability in get-jwks can lead to cache poisoning in the JWKS key-fetching mechanism. When the iss issuer claim is validated only after keys are retrieved from the cache, it is possible for cached keys from an...