CVE-2026-51852

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.save_file_b64. The save_file_b64 method accepts user-controlled file paths without normalization or validation, allowing path traversal attacks.

Published 2026-09-30. Last modified 2026-10-07.