[{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_ai"]}]

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[{"vendor":"feast-dev","product":"feast","defaultStatus":"affected","repo":"https://github.com/feast-dev/feast","versions":[{"version":"0","lessThan":"0.63.0","versionType":"semver","status":"affected"}]}]

[{"vendor":"feast-dev","product":"feast","defaultStatus":"affected","repo":"https://github.com/feast-dev/feast","packageURL":"pkg:github/feast-dev/feast","versions":[{"version":"0","lessThan":"0.63.0","versionType":"semver","status":"affected"}]}]

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-502

https://access.redhat.com/security/cve/CVE-2026-56121

https://bugzilla.redhat.com/show_bug.cgi?id=2492229

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-56121.json

[{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift_ai"]}]

{"timestamp":"2026-06-24T16:03:02.945728Z","id":"CVE-2026-56121","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

{"timestamp":"2026-06-25T00:00:00+00:00","id":"CVE-2026-56121","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

{"timestamp":"2026-06-24T16:03:02.945728Z","id":"CVE-2026-56121","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

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.

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-502

https://github.com/feast-dev/feast/commit/835cda8e2c1359f1f496ad72701dbd6a73bdb25a

https://github.com/feast-dev/feast/releases/tag/v0.63.0

https://huntr.com/bounties/d64b8111-180b-46ba-afa3-c877fda2ede6

https://www.vulncheck.com/advisories/feast-unauthenticated-rce-via-applyfeatureview-grpc-deserialization

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