PT-2026-69964

Name of the Vulnerable Software and Affected Versions Feast affected versions not specified Description Improper deserialization of user-defined functions UDFs stored in the registry, which are serialized using the dill library, allows for arbitrary code execution. In default configurations, a...

Exploit for CVE-2026-56121

CVE-2026-56121 — Feast Registry Unauthenticated RCE dill.load...

CVE-2026-23538

A vulnerability was identified in the Feast Feature Server's /ws/chat endpoint that allows remote attackers to establish persistent WebSocket connections without any authentication. By opening a large number of simultaneous connections, an attacker can exhaust server resources—such as memory, CPU...

CVE-2026-23538

The CVE affects Feast: Feast Feature Server /ws/chat accepts unauthenticated, persistent WebSocket connections. An attacker can open many concurrent connections to exhaust memory, CPU, and file descriptors, causing DoS. Affected software: Feast (Python SDK context cited by SNYK for Feast >=0.1...

EUVD-2026-44838

A vulnerability was identified in the Feast Feature Server's /ws/chat endpoint that allows remote attackers to establish persistent WebSocket connections without any authentication. By opening a large number of simultaneous connections, an attacker can exhaust server resources—such as memory, CPU...

CVE-2026-23538 Feast: resource exhaustion via websocket endpoint

A vulnerability was identified in the Feast Feature Server's /ws/chat endpoint that allows remote attackers to establish persistent WebSocket connections without any authentication. By opening a large number of simultaneous connections, an attacker can exhaust server resources—such as memory, CPU...

CVE-2026-23538

A vulnerability was identified in the Feast Feature Server's /ws/chat endpoint that allows remote attackers to establish persistent WebSocket connections without any authentication. By opening a large number of simultaneous connections, an attacker can exhaust server resources—such as memory, CPU...

PYSEC-2026-1366 Feast vulnerable to Deserialization of Untrusted Data

A high-severity remote code execution vulnerability exists in feast-dev/feast version 0.53.0, specifically in the Kubernetes materializer job located at feast/sdk/python/feast/infra/computeengines/kubernetes/main.py. The vulnerability arises from the use of yaml.load..., Loader=yaml.Loader to...

PYSEC-2026-1367 Feast Cross-Origin Resource Sharing vulnerability

A Cross-Origin Resource Sharing CORS vulnerability exists in feast-dev/feast version 0.40.0. The CORS configuration on the agentscope server does not properly restrict access to only trusted origins, allowing any external domain to make requests to the API. This can bypass intended security...

CVE-2026-23537

A vulnerability has been identified in the Feast Feature Server’s /save-document endpoint that allows an unauthenticated remote attacker to write arbitrary JSON files to the server's filesystem. Although the system attempts to restrict file locations, these protections can be bypassed, enabling a...

CVE-2026-23537

The CVE-2026-23537 issue affects the Feast Feature Server, specifically the vulnerable "/save-document" endpoint. An unauthenticated remote attacker can write arbitrary JSON files to the server filesystem, bypassing path restrictions and potentially overwriting vital configurations or startup scr...

CVE-2026-23537 Feast: unauthenticated arbitrary file write

A vulnerability has been identified in the Feast Feature Server’s /save-document endpoint that allows an unauthenticated remote attacker to write arbitrary JSON files to the server's filesystem. Although the system attempts to restrict file locations, these protections can be bypassed, enabling a...

CVE-2026-23537 Feast: unauthenticated arbitrary file write

A vulnerability has been identified in the Feast Feature Server’s /save-document endpoint that allows an unauthenticated remote attacker to write arbitrary JSON files to the server's filesystem. Although the system attempts to restrict file locations, these protections can be bypassed, enabling a...

PT-2026-54710

Name of the Vulnerable Software and Affected Versions Feast Feature Server affected versions not specified Description An unauthenticated remote attacker can write arbitrary JSON files to the server filesystem via the /save-document endpoint. The issue stems from improper input validation that...

Exploit for CVE-2026-56121

CVE-2026-56121 — Feast Unauthenticated RCE via gRPC Registry D...

CVE-2026-56121

A flaw was found in Feast. This vulnerability allows unauthenticated or unauthorized attackers to achieve remote code execution. By sending a specially crafted gRPC request to the registry server, attackers can exploit an unsafe deserialization process. This enables them to execute operating syst...

EUVD-2026-38801

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 userdefinedfunction.body field of an OnDemandFeatureView spec is decoded from...

Deserialization of Untrusted Data

Overview feast is a Python SDK for Feast Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the ApplyFeatureView handler of registryserver.py, which calls FeatureView.fromproto and deserializes the feature view's embedded user-defined function before the appl...

CVE-2026-56121

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 userdefinedfunction.body field of an OnDemandFeatureView spec is decoded from...

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

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 userdefinedfunction.body field of an OnDemandFeatureView spec is decoded from...