CVE-2025-8406: Zenml

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

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 Zenml: from 0.83.1, before 0.84.2 (fixed in 0.84.2)

Published 2025-10-05. Last modified 2026-06-17.