CVE-2026-4137

A flaw was found in mlflow/mlflow. Insecure permissions on temporary directories allow local attackers to tamper with model artifacts, such as cloudpickle-serialized Python objects. This manipulation can lead to arbitrary code execution when the tampered artifacts are deserialized. This...

MLFlow Creates a Temporary File With Insecure Permissions

In mlflow/mlflow versions prior to 3.11.0, the getorcreatenfstmpdir function in mlflow/utils/fileutils.py creates temporary directories with world-writable permissions 0o777, and the createmodeldownloadingtmpdir function in mlflow/pyfunc/init.py creates directories with group-writable permissions...

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

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’...