CVE-2026-56121
CVE-2026-56121: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh8.8
High [CVE-2026-56121] Remote Code Execution via Unsafe Deserialization in gRPC Registry Server
CVE-2026-56121Source published Source updated
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. A flaw was found in Feast. This enables them to execute operating system commands as the Feast service account, leading to a complete compromise of the affected system. Red Hat OpenShift AI ships Feast versions affected by CVE-2026-56121. This flaw allows remote code…
- Affected products in this advisory
- Red Hat OpenShift AI 3.4
- Red Hat OpenShift AI (RHOAI)
- Source-reported affected versions
- < 0.63.0
- Source-reported fixed versions
- 0.63.0
- rhoai/odh-pipeline-runtime-datascience-cpu-py312-rhel9:1787073866
- rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9:1787073873
- rhoai/odh-pipeline-runtime-pytorch-llmcompressor-cuda-py312-rhel9:1787073459
10 more entries in the full advisory.
- Mitigation guidance
- - Restrict network access to Feature Server / registry endpoints (NetworkPolicy, Route auth, no public exposure). - Do not expose the Feast registry gRPC port to untrusted networks; place behind OpenShift Route + platform authentication.
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