---
id: CVE-2026-118623
title: >-
  MLflow PickleEvaluationArtifact Deserialization of Untrusted Data Remote Code
  Execution Vulnerability
summary: >-
  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…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-502
vendor: MLflow
product: MLflow
affected:
  - MLflow 3.10.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-04T00:00:00+00:00'
published: '2026-11-03'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T04:55:57.412Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-118623'
references:
  - url: 'https://www.zerodayinitiative.com/advisories/ZDI-26-839/'
    label: ZDI-26-839
tags:
  - cve.org
epss: 0.00373
epssPercentile: 0.31436
zeroDay: true
ingestedAt: '2026-11-05T21:36:00.739Z'
---

## Overview

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.

## Affected

- `MLflow 3.10.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.