← Vulnerability feed

Vulnerability record · CVE-2025-8406 · published 5 October 2025

CVE-2025-8406: Zenml path traversal vulnerability

Zenml · Zenml

ZenML version 0.83.1 is affected by a path traversal vulnerability in the `PathMaterializer` class. The `load` function uses `is_path_within_directory` to validate files during `data.tar.gz` extraction, which fails to effectively detect symbolic and hard links. This vulnerability can lead to arbitrary file writes, potentially resulting in arbitrary command execution if critical files are overwritten.

7.8 CVSS 3.1 High EPSS 0.37% · top 72.2% CWE-22 · Path traversal
7.8CVSS 3.1 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

ZenML version 0.83.1 is affected by a path traversal vulnerability in the `PathMaterializer` class. The `load` function uses `is_path_within_directory` to validate files during `data.tar.gz` extraction, which fails to effectively detect symbolic and hard links. This vulnerability can lead to arbitrary file writes, potentially resulting in arbitrary command execution if critical files are overwritten.

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

Affected products

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

References

LinkTags
https://github.com/zenml-io/zenml/commit/5d22a48d7bf6c7f10b748577c2be79cc7969d398 Patch
https://huntr.com/bounties/a0880d64-9928-45bf-9663-2cd81582d9e7 ExploitThird Party Advisory
https://huntr.com/bounties/a0880d64-9928-45bf-9663-2cd81582d9e7 ExploitThird Party Advisory

Track CVE-2025-8406 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

9.9CVE-2024-2083Zenml vulnerabilityA directory traversal vulnerability exists in the zenml-io/zenml repository, specifically within the /api/v1/steps endpoint. Attackers can exploit th…EPSS 37%8.8CVE-2024-4680Zenml insufficient session expiration vulnerabilityA vulnerability in zenml-io/zenml version 0.56.3 allows attackers to reuse old session credentials or session IDs due to insufficient session expirat…EPSS 0.41%8.8CVE-2024-28424Zenml code injection vulnerabilityzenml v0.55.4 was discovered to contain an arbitrary file upload vulnerability in the load function at /materializers/cloudpickle_materializer.py. Th…EPSS 0.71%8.8CVE-2024-25723ZenML Server activate endpoint allows remote privilege escalationZenML Server before 0.46.7 exposes the /api/v1/users/{user_name_or_id}/activate REST endpoint, which grants access based on a valid username plus a n…EPSS 71%analysed7.5CVE-2024-9340Zenml vulnerabilityA Denial of Service (DoS) vulnerability in zenml-io/zenml version 0.66.0 allows unauthenticated attackers to cause excessive resource consumption by …EPSS 0.95%6.5CVE-2024-2035Zenml missing authorization vulnerabilityAn improper authorization vulnerability exists in the zenml-io/zenml repository, specifically within the API PUT /api/v1/users/id endpoint. This vuln…EPSS 0.63%6.1CVE-2024-5062Zenml cross-site scripting vulnerabilityA reflected Cross-Site Scripting (XSS) vulnerability was identified in zenml-io/zenml version 0.57.1. The vulnerability exists due to improper neutra…EPSS 0.39%6.1CVE-2024-2383Zenml clickjacking vulnerabilityA clickjacking vulnerability exists in zenml-io/zenml versions up to and including 0.55.5 due to the application's failure to set appropriate X-Frame…EPSS 0.36%

Source: NIST National Vulnerability Database (record CVE-2025-8406), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.