CVE-2026-23552

CVE-2026-23552 - camel-keycloak におけるクロスレルムトークンの受け入れ 概要 Apache Camel の KeycloakSecurityPolicy は、JWT トークンの iss issuer クレームを設定されたレルムに対して検証しません。つまり、ある Keycloak レルムから発行されたトークンが、まったく別のレルム用に設定されたポリシーによって暗黙に受け入れられ、テナントの分離が壊れます。 影響を受けるバージョン: 4.15.0, 4.16.0, 4.17.0 追跡先:...

CVE-2026-75156

The apache-airflow-providers-fab package (versions 3.7.3 through 3.8.0) is vulnerable to an Origin Validation Error during OAuth login when configured with Azure AD. The root cause is the failure to validate the issuer or audience of Azure AD id_tokens within the _decode_and_validate_azure_jwt fu...

SUSE CVE-2026-75509

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to version 1.7.3, JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, allowing an array-valued iss that contains the expected issuer to pass...

CVE-2026-75509

A flaw was found in joserfc, a Python library for JSON Object Signing and Encryption JOSE standards. A remote attacker could exploit a vulnerability in the JWTClaimsRegistry by crafting a JSON Web Token JWT with an array-valued issuer iss claim. This flaw allows the attacker to bypass the intende...

Linux Distros Unpatched Vulnerability : CVE-2026-75509

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to version 1.7.3,...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation through the JWTClaimsRegistry in src/joserfc/rfc7519/claims.py. An attacker can make a JWT with an array-typed iss claim pass an exact-issuer check by supplying a list that contains the expected issuer string...

CVE-2026-75509

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to version 1.7.3, JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, allowing an array-valued iss that contains the expected issuer to pass...

CVE-2026-75509 joserfc claim-validation bypass via array-typed single-string claims (iss/sub/jti)

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to version 1.7.3, JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, allowing an array-valued iss that contains the expected issuer to pass...

CVE-2026-75509 joserfc claim-validation bypass via array-typed single-string claims (iss/sub/jti)

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to version 1.7.3, JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, allowing an array-valued iss that contains the expected issuer to pass...

CVE-2026-75509 joserfc claim-validation bypass via array-typed single-string claims (iss/sub/jti)

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to version 1.7.3, JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, allowing an array-valued iss that contains the expected issuer to pass...

CVE-2026-75509

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to version 1.7.3, JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, allowing an array-valued iss that contains the expected issuer to pass...

CVE-2026-75509

joserfc is a Python library implementing JOSE standards. Prior to version 1.7.3 , the JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, meaning an array-valued iss claim that merely contains the expected issuer will pass an intended equality check. This enables issu...

CVE-2026-75509: Authentication Bypass by Spoofing

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to version 1.7.3, JWTClaimsRegistry applies membership matching to list-valued iss and sub claims, allowing an array-valued iss that contains the expected issuer to pass...

GHSA-272M-GCWP-MPWG Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks

Summary Netty's OcspClient does not validate that the CertificateID in an OCSP response matches the requested CertificateID. A bad actor can replay a GOOD status response issued for an unrelated certificate by the same CA to bypass revocation checks for any certificate. Details...

CVE-2026-55954

CVE-2026-55954 affects ueberauth_apple (v0.1.0 up to but not including v0.6.2). The root cause is lack of validation for registered ID token claims (iss, aud, exp, iat) in Ueberauth.Strategy.Apple.Token.payload/2; the code uses the unvalidated sub to derive the user uid and email. An attacker who...

Vulnerabilities handled in the n8n workflow automation platform

n8n has identified several vulnerabilities in its workflow automation platform. These vulnerabilities include: - An authorization issue where authenticated users can assign workflows to folders within projects to which they do not have access, due to insufficient validation of request payloads...

EUVD-2026-42958

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

Authentication Bypass

github.com/googleapis/mcp-toolbox is vulnerable to Authentication Bypass. The vulnerability is due to improper validation of the optional issuer iss claim during OAuth 2.0 opaque token introspection. If the introspection response omits the iss field, the issuer validation is silently skipped, whi...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication in the validateOpaqueToken process. An attacker can gain unauthorized access by providing an opaque token that lacks the iss field in the OAuth 2.0 introspection response, causing the issuer validation to be...

GHSA-9MRV-8PVF-HF4M Apache CXF OAuth2 Missing JWT Audience and Issuer Validation in Access Token Validator

The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' Audience claims of incoming JWT access tokens. This allows a JWT issued for one Resource Server to be successfully replayed against a completely different Resource Server, leading to Token Confusion/Routing attacks. Users...