MLflow 3.10.1 Pickle Deserialization RCE via Untrusted Data
CVE-2026-118623 Published on November 3, 2026

MLflow PickleEvaluationArtifact Deserialization of Untrusted Data Remote Code Execution Vulnerability
MLflow PickleEvaluationArtifact Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MLflow. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of pickle files. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29513.

NVD

Vulnerability Analysis

Exploitation:
NONE
Automatable:
NO
Technical Impact:
TOTAL

Weakness Type

What is a Marshaling, Unmarshaling Vulnerability?

The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

CVE-2026-118623 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.


Affected Versions

MLflow Version 3.10.1 is affected by CVE-2026-118623