CVE-2026-50338

CVE-2026-50338 Spring Cloud Azure B2C Resource Server Cross-Issuer Authentication Bypass Description AadB2cResourceServerAutoConfiguration in spring-cloud-azure-autoconfigure builds a JwtDecoder that trusts six AAD-line issuers login.microsoftonline.com, sts.windows.net, sts.chinacloudapi.cn, v1...

DEBIAN-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...

EUVD-2026-65138

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...

PT-2026-81024

Name of the Vulnerable Software and Affected Versions joserfc versions prior to 1.7.3 Description The JWTClaimsRegistry component incorrectly applies membership matching to list-valued iss and sub claims. This behavior allows an array-valued iss that contains the expected issuer to pass an equali...

CVE-2026-18353

PIA's POST /v1/upload/sbom endpoint accepts a Bearer JWT and checks its unverified iss claim against an issuer allowlist using Python's urlparse before performing OIDC discovery with requests. Because urlparse and requests/urllib3 parse an authority string containing a backslash e.g...

CVE-2026-49998 Centrifugo: Dynamic JWKS key cache keyed only by `kid` allows cross-issuer JWT authentication bypass

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.1, Centrifugo dynamic JWKS endpoint verification could reuse a key for one allowed issuer to verify a JWT for another allowed issuer because the JWKS cache and singleflight lookup were keyed only by JWT header kid, not...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the JWKS key caching process. An attacker can gain unauthorized access to another issuer or tenant's resources by crafting a valid token for one allowed issuer and exploiting the cache...

get-jwks 安全漏洞

get-jwks is a Nearform open source utility for obtaining JWKS keys. A security vulnerability exists in get-jwks versions prior to 11.0.2, which stems from a cache poisoning issue in the JWKS key fetching mechanism that could lead to bypassing issuer authentication...