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9.3 Critical

CVE-2026-56121 Feast before 0.63.0 contains an unsafe deserialization vulnerability that allows unauthenticated or unauthorized…

Description

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.

Affected products and versions

Product Affected versions Fixed in
feast 0.63 earliest → < 0.63.0 0.63.0
Red Hat OpenShift AI (RHOAI) Versions not published
Red Hat OpenShift AI 3.4 1787073713 earliest → < 1787073713 1787073713

References

Timeline

  1. Published
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Other CVEs of feast

The 3 CVEs of feast →
CVE-2026-55563 Feast is the open source feature store for AI and machine learning 8.9 High CVE-2026-92787 Feast through 0.66.0 fails to verify JWT token signatures before establishing user identity, allowing attackers to… 9.3 Critical
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