CVE-2026-40968

CVE-2026-40968 affects Spring gRPC 1.0.0–1.0.2 (fixed in 1.0.3; older/unsupported versions also affected). The issue: when an authenticated user is denied access to a gRPC method, the user’s authenticated identity remains bound to a gRPC worker thread and can be inherited by a subsequent unauthen...

CVE-2026-40968 Spring gRPC SecurityContext leaks across requests on authorization failure

When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subsequent user to gain escalated permissions. Affected versions:...