CVE-2026-105942

This vulnerability affects Apache Pulsar versions from 2.8.1 before 4.0.14 and from 4.1.0 before 4.2.5. The issue stems from two flaws in how the broker authorizes proxied requests. First, the broker sometimes authorizes the original principal using the proxy's authentication data instead of its ...

CVE-2026-105869

Apache Pulsar's MultiRolesTokenAuthorizationProvider contains a vulnerability where it fails to verify the signature of JSON Web Tokens (JWT) during authorization. When anonymousUserRole is set to a non-empty value and strictAuthMethod is false (default), requests with failed credentials may fall...

EUVD-2026-107422

Apache Pulsar's MultiRolesTokenAuthorizationProvider authorizes a client with all roles listed in a claim of its JSON Web Token JWT. The provider is intended for use with token authentication, which verifies the token before authorization. The provider did not verify the token itself: it parsed t...