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CVE-2026-56121

CVE-2026-56121 · Feast < 0.63.0 Unauthenticated RCE via ApplyFeatureView gRPC Deserialization

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 9.3 · Critical · EPSS 1.4% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • feast

    Versions
    • ≥ 0, < 0.63.0: Affected (semver)

    Update to 0.63.0

  • feast PyPI

    Versions
    • 0.1.0
    • 0.1.0.post0
    • 0.1.2
    • 0.1.2.post0
    • 0.1.2.post1
    • 0.10.0
    • 0.10.1
    • 0.10.1rc1
    • 0.10.1rc3
    • 0.10.2
    • 0.10.3
    • 0.10.4
    • 0.10.5
    • 0.10.6
    • 0.10.7
    • 0.10.8
    • 0.11.0
    • 0.12.0
    • 0.12.1
    • 0.13.0
    • 0.14.0
    • 0.14.1
    • 0.15.0
    • 0.15.1
    • 0.16.0
    • 0.16.1
    • 0.17.0
    • 0.18.0
    • 0.18.1
    • 0.19.0
    • 0.19.1
    • 0.19.2
    • 0.19.3
    • 0.19.4
    • 0.20.0
    • 0.20.1
    • 0.20.2
    • 0.21.0
    • 0.21.1
    • 0.21.2
    • 0.21.3
    • 0.22.0
    • 0.22.1
    • 0.22.2
    • 0.22.3
    • 0.22.4
    • 0.23.0
    • 0.23.1
    • 0.23.2
    • 0.24.0
    • 0.24.1
    • 0.25.0
    • 0.25.1
    • 0.25.2
    • 0.26.0
    • 0.27.0
    • 0.27.1
    • 0.28.0
    • 0.29.0
    • 0.3.0
    • 0.3.2
    • 0.3.3
    • 0.3.3.post0
    • 0.3.4
    • 0.3.5
    • 0.3.6
    • 0.3.7
    • 0.30.2
    • 0.31.0
    • 0.31.1
    • 0.33.1
    • 0.34.0
    • 0.34.1
    • 0.35.0
    • 0.36.0
    • 0.37.1
    • 0.38.0
    • 0.39.0
    • 0.39.1
    • 0.4.0
    • 0.4.1
    • 0.4.1.post0
    • 0.4.2
    • 0.4.3
    • 0.4.4
    • 0.4.5
    • 0.4.6
    • 0.4.7
    • 0.40.0
    • 0.40.1
    • 0.41.3
    • 0.42.0
    • 0.43.0
    • 0.44.0
    • 0.45.0
    • 0.46.0
    • 0.47.0
    • 0.48.0
    • 0.48.1
    • 0.49.0
    • 0.5.0
    • 0.5.0.post0
    • 0.5.0rc0
    • 0.5.1
    • 0.50.0
    • 0.51.0
    • 0.52.0
    • 0.53.0
    • 0.54.0
    • 0.54.1
    • 0.55.0
    • 0.56.0
    • 0.57.0
    • 0.58.0
    • 0.59.0
    • 0.6.0
    • 0.6.1
    • 0.6.2
    • 0.60.0
    • 0.61.0
    • 0.62.0
    • 0.7.0
    • 0.7.0rc1
    • 0.7.0rc2
    • 0.7.0rc3
    • 0.7.1
    • 0.7.2
    • 0.8.0
    • 0.8.0rc3
    • 0.8.1
    • 0.8.2
    • 0.8.3
    • 0.8.4
    • 0.9.0
    • 0.9.0rc1
    • 0.9.0rc2
    • 0.9.1
    • 0.9.2
    • 0.9.3
    • 0.9.4
    • 0.9.5
    • 0.9.5.1
    • 0.9.5.2
    • 0.9.6
    • 0.9.7
    • 0.9.8
    • 0.9.9
    Affected ranges
    • ECOSYSTEM: < 0.63.0

    Update to 0.63.0

Original sources

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