cvedb.io
CVE-2026-56121
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-06-24T16:16:33.193 · Last modified 2026-06-24T17:17:30.077

Summary

Feast before 0.63.0 contains an unsafe deserialization vulnerability that allows unauthenticated or unauthorized attackers to achieve remote code execution by sending a crafted gRPC request to the registry server. The user_defined_function.body field of an OnDemandFeatureView spec is decoded from base64 and passed to dill.loads() before any authorization check is performed, enabling attackers to embed a malicious serialized Python object with an arbitrary __reduce__ method to execute OS commands as the feast service account.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.