Vulnerability GHSA-q63x-9pfm-mjx4

Critical
CRITICAL RISK
CVSS Score: 9.8
Score Range: 9.0–10.0
Critical severity vulnerabilities (CVSS 9.0–10.0). These represent the highest impact issues.
4 months ago
June 24, 2026 at 06:32 PM UTC
Feast vulnerable to unsafe deserialization RCE in registry server via UDF proto
0.1.0 - 0.62.0
0.1.0 - 0.62.0

Summary

Feast vulnerable to unsafe deserialization RCE in registry server via UDF proto

Details

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.

Impacted packages

Timeline

Published
4 months ago
June 24, 2026 at 06:32 PM UTC
Fixed (0.63.0)
6 months ago
May 04, 2026 at 04:31 AM UTC
Last Modified
13 hours ago
November 03, 2026 at 09:31 PM UTC