Integer overflow in chunking helper causes dispatching to miss elements or panic
Published Mar 1, 2024 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
Integer overflow in chunking helper causes dispatching to miss elements or panic
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Any SpiceDB cluster with any schema where a resource being checked has more than 65535 relationships for the same resource and subject type is affected by this problem.
Potential impact
Permission checks that are expected to be allowed are instead denied, and lookup subjects will return fewer subjects than expected. Workarounds There is no workaround other than making sure that the SpiceDB cluster does not have very wide relations, with the maximum value being the maximum value of an 16-bit unsigned integer Remediations - AuthZed Dedicated customers: No action. AuthZed has upgraded all deployments. - AuthZed Serverless customers: No Action. AuthZed has upgraded all deployments. - AuthZed Enterprise customers: Upgrade to v1.29.2-hotfix-enterprise.v1.hotfix.v1 - Open Source users: Upgrade to v1.29.2
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Mar 1, 2024 · Last refreshed Nov 3, 2026