What’s Vulnerable › Vulnerabilities

CVE-2025-8406: Path Traversal in zenml-io/zenml

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-10-05 · updated 2026-10-19
• Weakness: CWE-22

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.

Affected products

• zenml-io/zenml: from 0.83.1 before 0.84.2 — fixed in 0.84.2

How to fix

Upgrade to a fixed version: zenml-io/zenml 0.84.2. Check the vendor advisory for mitigations.

References

• https://github.com/zenml-io/zenml/commit/5d22a48d7bf6c7f10b748577c2be79cc7969d398
• https://huntr.com/bounties/a0880d64-9928-45bf-9663-2cd81582d9e7
• https://huntr.com/bounties/a0880d64-9928-45bf-9663-2cd81582d9e7

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