GHSA-4VRG-R928-H5VV SpiceDB: Checks involving relations with caveats can result in unconditional permission when conditional permission is expected

Impact Under concurrency, CheckPermission and CheckBulkPermissions can return PERMISSIONSHIPHASPERMISSION for a resource, permission, subject whose correct answer is PERMISSIONSHIPCONDITIONALPERMISSION. You are impacted if all of the following hold: 1. Your schema has a permission combining...

SpiceDB: Caveat structures with nested lists can result in improper cache reuse

Impact Users are impacted if: - They have a caveat structure with a nested list, e.g.: zed caveat shapex list x == "a", "b" - Their system exercises that caveat with either CheckBulkPermission or else LookupResources running with the --experimental-lookup-resources-version flag set to lr3, implyi...

PT-2026-42696

Name of the Vulnerable Software and Affected Versions SpiceDB versions 1.15.0 through 1.51.x Description Caveat structures containing nested lists can lead to improper cache reuse. This occurs when the system processes these structures using the 'CheckBulkPermissions' endpoint or the...