EUVD-2026-28828

Ray is an AI compute engine. From version 2.54.0 to before version 2.55.0, Ray Data registers custom Arrow extension types ray.data.arrowtensor, ray.data.arrowtensorv2, ray.data.arrowvariableshapedtensor globally in PyArrow. When PyArrow reads a Parquet file containing one of these extension type...

CVE-2026-41486

Ray contains a remote code execution flaw (CVE-2026-41486) observed in Ray 2.49.0–2.54.0 where PyArrow reads Parquet extension types in metadata and Ray passes the bytes to cloudpickle.loads() during schema parsing, enabling arbitrary code execution before any row data is read. The issue affects ...

CVE-2026-41486

Ray is an AI compute engine. From version 2.54.0 to before version 2.55.0, Ray Data registers custom Arrow extension types ray.data.arrowtensor, ray.data.arrowtensorv2, ray.data.arrowvariableshapedtensor globally in PyArrow. When PyArrow reads a Parquet file containing one of these extension type...

CVE-2026-41486 Ray: Remote Code Execution via Parquet Arrow Extension Type Deserialization

Ray is an AI compute engine. From version 2.54.0 to before version 2.55.0, Ray Data registers custom Arrow extension types ray.data.arrowtensor, ray.data.arrowtensorv2, ray.data.arrowvariableshapedtensor globally in PyArrow. When PyArrow reads a Parquet file containing one of these extension type...

GHSA-MW35-8RX3-XF9R Ray: Remote Code Execution via Parquet Arrow Extension Type Deserialization

Ray Data registers custom Arrow extension types ray.data.arrowtensor, ray.data.arrowtensorv2, ray.data.arrowvariableshapedtensor globally in PyArrow. When PyArrow reads a Parquet file containing one of these extension types, it calls arrowextdeserialize on the field's metadata bytes. Ray's...

Ray: Remote Code Execution via Parquet Arrow Extension Type Deserialization

Ray Data registers custom Arrow extension types ray.data.arrowtensor, ray.data.arrowtensorv2, ray.data.arrowvariableshapedtensor globally in PyArrow. When PyArrow reads a Parquet file containing one of these extension types, it calls arrowextdeserialize on the field's metadata bytes. Ray's...

Deserialization of Untrusted Data

Overview ray is an A system for parallel and distributed Python that unifies the ML ecosystem. Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the deserialization of Parquet Arrow extension type metadata via the cloudpickle.loads function. An attacker can...

PT-2026-37117

Name of the Vulnerable Software and Affected Versions Ray versions 2.49.0 through 2.54.0 Description Ray Data registers custom Arrow extension types ray.data.arrow tensor, ray.data.arrow tensor v2, and ray.data.arrow variable shaped tensor globally in PyArrow. When PyArrow reads a Parquet file...

Unsafe cloudpickle deserialization in Prefect task runners and bundle deserialization

This report is not public...

Incomplete Fix for CVE-2025-10279: get_or_create_nfs_tmp_dir() Still Creates World-Writable (0o777) Directories Enabling Local Code Execution

Description Description CVE-2025-10279 huntr bounty 01d3b81e identified that MLflow's getorcreatetmpdir created temporary directories with world-writable permissions 0o777, enabling local attackers to tamper with model artifacts and achieve arbitrary code execution. The fix PR 17544, commit...

CVE-2026-0773

Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Upsonic. Authentication is not required to exploit this vulnerability. The specific flaw exists within the...

CVE-2026-0773

Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Upsonic. Authentication is not required to exploit this vulnerability. The specific flaw exists within the...

CVE-2026-0773 Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability

Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Upsonic. Authentication is not required to exploit this vulnerability. The specific flaw exists within the...

CVE-2026-0773

Upsonic is affected by a Cloudpickle deserialization vulnerability in the add_tool endpoint (default TCP port 7541). The flaw arises from improper validation of user-supplied data, allowing cloudpickle.loads() to deserialize untrusted data, enabling remote code execution with the service account’...

CVE-2026-0773 Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability

Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Upsonic. Authentication is not required to exploit this vulnerability. The specific flaw exists within the...

(0Day) Upsonic Cloudpickle Deserialization of Untrusted Data Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Upsonic. Authentication is not required to exploit this vulnerability. The specific flaw exists within the addtool endpoint, which listens on TCP port 7541 by default. The issue results from the lack...

PT-2026-2003

Name of the Vulnerable Software and Affected Versions Upsonic affected versions not specified Description A remote code execution issue exists in Upsonic due to deserialization of untrusted data. This allows for unauthenticated exploitation, potentially impacting systems that rely on the componen...

Remote Code Execution (RCE)

Fugue is vulnerable to Remote Code Execution RCE. The vulnerability is due to unsafe deserialization in the FlaskRPCServer implementation, where the decode function uses cloudpickle.loads on untrusted data, allowing attackers to send malicious serialized objects that execute arbitrary code on the...

CVE-2025-62703

Fugue is a unified interface for distributed computing that lets users execute Python, Pandas, and SQL code on Spark, Dask, and Ray with minimal rewrites. In version 0.9.2 and prior, there is a remote code execution vulnerability by pickle deserialization via FlaskRPCServer. The Fugue framework...

GHSA-XV5P-FJW5-VRJ6 Fugue is Vulnerable to Remote Code Execution by Pickle Deserialization via FlaskRPCServer

Summary The Fugue framework implements an RPC server system for distributed computing operations. In the core functionality of the RPC server implementation, I found that the decode function in fugue/rpc/flask.py directly uses cloudpickle.loads to deserialize data without any sanitization. This...