CVE-2025-15031

Name: CVE-2025-15031
Creator: NVD / NIST
Published: 2026-03-18T23:17:28.693+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.71%

Last modified Jun 17, 2026

CVE-2025-15031 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.1/10

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

CVSS 3.0

8.1/10

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.71%

48.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Lfprojects	Mlflow	<= 3.10.1

References

https://huntr.com/bounties/09856f77-f968-446f-a930-657d126efe4eExploit, Mitigation, Third Party Advisory
https://huntr.com/bounties/09856f77-f968-446f-a930-657d126efe4eExploit, Mitigation, Third Party Advisory

Timeline

Published: Mar 18, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-15031?

How severe is CVE-2025-15031?

CVE-2025-15031 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.

How do I fix CVE-2025-15031?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-15031?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST