SpiceDB is an open source database for storing and querying fine-grained authorization data. Prior to version 1.44.2, on schemas involving arrows with caveats on the arrow’ed relation, when the path to resolve a CheckPermission request involves the evaluation of multiple caveated branches, requests may return a negative response when a positive response is expected. Version 1.44.2 fixes the issue. As a workaround, do not use caveats in the schema over an arrow’ed relation.
https://github.com/authzed/spicedb/security/advisories/GHSA-cwwm-hr97-qfxm
https://github.com/authzed/spicedb/releases/tag/v1.44.2
https://github.com/authzed/spicedb/commit/fe8dd9f491f6975b3408c401e413a530eb181a67