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...

CVE-2026-23537: Missing Authorization

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...

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 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...

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...

CVE-2026-56121

Feast

CVE-2026-56121: Deserialization of Untrusted Data

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...

PT-2026-51837

Name of the Vulnerable Software and Affected Versions Feast versions prior to 0.63.0 Description An unsafe deserialization issue exists in the registry server that allows unauthenticated or unauthorized attackers to achieve remote code execution. By sending a crafted gRPC request, an attacker can...

cellist (>=1.0.0, <=1.1.1), feast-py (>=0.1.7, <=1.0.1) +1 more potentially affected by unknown CVE via spateo-release (>=1.0.2, <=1.1.1)

spateo-release PYPI version =1.0.2, =1.0.0, =0.1.7, =1.0.1 - feast-sim 0.1.7 Source cves: unknown CVE Source advisory: SNYK:PYTHON-SPATEORELEASE-17220148...

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-2026-23536

A security issue was discovered in the Feast Feature Server's /read-document endpoint that allows an unauthenticated remote attacker to read any file accessible to the server process. By sending a specially crafted HTTP POST request, an attacker can bypass intended access restrictions to...

CVE-2026-23536 Feast: unauthenticated arbitrary file read

A security issue was discovered in the Feast Feature Server's /read-document endpoint that allows an unauthenticated remote attacker to read any file accessible to the server process. By sending a specially crafted HTTP POST request, an attacker can bypass intended access restrictions to...

CVE-2026-23536 Feast: unauthenticated arbitrary file read

A security issue was discovered in the Feast Feature Server's /read-document endpoint that allows an unauthenticated remote attacker to read any file accessible to the server process. By sending a specially crafted HTTP POST request, an attacker can bypass intended access restrictions to...

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-2026-23536

The Feast Feature Server (versions through 0.58.0 ) is vulnerable to an unauthenticated arbitrary file read vulnerability via the /read-document endpoint. The root cause is a lack of path validation, where the handler passes the JSON file_path field directly to os.path.exists() and open(). This a...