# CVE-2025-8406: PYSEC-2026-2071 - ZenML is vulnerable to Path Traversal through its `PathMaterializer` class

Source: https://junglewise.ai/threats/cve-2025-8406-zenml-is-vulnerable-to-path-traversal-through-its-pathmaterializer  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2025-8406 · Severity: low · CVSS 3 · Published 2026-07-07

ZenML is vulnerable to Path Traversal through its `PathMaterializer` class

Technologies: [zenml (PyPI)](https://junglewise.ai/threats/technologies/pypi-zenml). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2025-8406 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-8406 being exploited in the wild.

**How severe is CVE-2025-8406?** Low severity, with a CVSS score of 3, published 7 July 2026.

**Which products and versions are affected?** zenml (PyPI) ECOSYSTEM:introduced=0.81.0,fixed=0.84.2.

**Is there a fix for CVE-2025-8406?** Yes. zenml (PyPI): upgrade to 0.84.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-8406?** Check whether you run zenml (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- zenml (PyPI): upgrade to 0.84.2 or later

  ```sh
  pip install "zenml>=0.84.2"
  ```


## Affected products

- zenml (PyPI) ECOSYSTEM:introduced=0.81.0,fixed=0.84.2

## Identifiers

- CVE-2025-8406
- GHSA-q92x-2x5g-h365
- PYSEC-2026-2071

## Related threats

- [PYSEC-2026-2070 - Missing ratelimit on passwrod resets in zenml](https://junglewise.ai/threats/cve-2024-4311-missing-ratelimit-on-passwrod-resets-in-zenml)
- [PYSEC-2026-2068 - Improper line feed handling in zenml](https://junglewise.ai/threats/cve-2024-4460-improper-line-feed-handling-in-zenml)
- [PYSEC-2026-2069 - zenml-io/zenml does not expire the session after password reset](https://junglewise.ai/threats/cve-2024-4680-zenml-io-zenml-does-not-expire-the-session-after-password-reset)
- [PYSEC-2026-2072 - ZenML Server Remote Privilege Escalation Vulnerability](https://junglewise.ai/threats/cve-2024-25723-zenml-server-remote-privilege-escalation-vulnerability)
- [ZenML unauthenticated DoS via Multipart Boundry](https://junglewise.ai/threats/cve-2024-9340-zenml-unauthenticated-dos-via-multipart-boundry)