CVE WatchJul 15, 2026

CVE-2025-15031

A vulnerability in MLflow's pyfunc extraction process allows for arbitrary file writes due to improper handling of tar archive entries. Spec

CVSS

9.1

Critical

EPSS

0.9%

p54

KEV

—

Exploit Today

0-100

Published: Mar 18, 2026 · Last modified: Jul 15, 2026 · CWE-22

EPSS · 30d

0.9%EPSS · 30 days0.9%

2026-06-302026-07-16

Technical description

A vulnerability in MLflow's pyfunc extraction process allows for arbitrary file writes due to improper handling of tar archive entries. Specifically, the use of `tarfile.extractall` without path validation enables crafted tar.gz files containing `..` or absolute paths to escape the intended extraction directory. This issue affects the latest version of MLflow and poses a high/critical risk in scenarios involving multi-tenant environments or ingestion of untrusted artifacts, as it can lead to arbitrary file overwrites and potential remote code execution.

Official references

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