Vulnerability Description
SpiceDB is an open source database system for creating and managing security-critical application permissions. In versions prior to 1.45.2, users who use the exclusion operator somewhere in their authorization schema; have configured their SpiceDB server such that `--write-relationships-max-updates-per-call` is bigger than 6500; and issue calls to WriteRelationships with a large enough number of updates that cause the payload to be bigger than what their datastore allows; will receive a successful response from their `WriteRelationships` call, when in reality that call failed, and receive incorrect permission check results, if those relationships had to be read to resolve the relation involving the exclusion. Version 1.45.2 contains a patch for the issue. As a workaround, set `--write-relationships-max-updates-per-call` to `1000`.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Authzed | Spicedb | < 1.45.2 |
Related Weaknesses (CWE)
References
- https://github.com/authzed/spicedb/security/advisories/GHSA-pm3x-jrhh-qcr7PatchVendor Advisory
FAQ
What is CVE-2025-64529?
CVE-2025-64529 is a vulnerability with a CVSS score of 6.5 (MEDIUM). SpiceDB is an open source database system for creating and managing security-critical application permissions. In versions prior to 1.45.2, users who use the exclusion operator somewhere in their auth...
How severe is CVE-2025-64529?
CVE-2025-64529 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-64529?
Check the references section above for vendor advisories and patch information. Affected products include: Authzed Spicedb.