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Vulnerability record · CVE-2025-15031 · published 18 March 2026

CVE-2025-15031: Lfprojects mlflow path traversal vulnerability

Lfprojects · Mlflow

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.

9.1 CVSS 3.1 Critical EPSS 0.85% · top 43.4% CWE-22 · Path traversal
9.1CVSS 3.1 base score
0.85%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 2 tagged exploit
15 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://huntr.com/bounties/09856f77-f968-446f-a930-657d126efe4e ExploitMitigationThird Party Advisory
https://access.redhat.com/security/cve/CVE-2025-15031
https://bugzilla.redhat.com/show_bug.cgi?id=2448912
https://huntr.com/bounties/09856f77-f968-446f-a930-657d126efe4e ExploitMitigationThird Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-15031.json

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-15031), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.