CVE-2026-55866 SpiceDBChecks involving relations with caveats can result in unconditional permission when conditional permission is expected

SpiceDB is an open source database system for creating and managing security-critical application permissions. From 1.34.0 until 1.54.0, SpiceDB can return PERMISSIONSHIPHASPERMISSION instead of PERMISSIONSHIPCONDITIONALPERMISSION or PERMISSIONSHIPNOPERMISSION because checkRequestToKey and...