CVE-2026-51853

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

agent-zero 1.7, 1.8, 1.9, and 1.10 is vulnerable to Directory Traversal in python/helpers/file_browser.py:FileBrowser.__init__. The FileBrowser class initializes with the host root directory as the workspace, allowing the agent to access any file on the system without restriction.

Published 2026-09-30. Last modified 2026-10-01.