AgentZero - Path Traversal (CVE-2025-55523)

CVE-2025-55523 is a directory traversal vulnerability in the /api/download_work_dir_file.py component of Agent-Zero v0.8.*, which allows authenticated attackers to access files outside the intended directory. This flaw could be exploited to read sensitive files on the server, potentially exposing confidential information.

CrowdSec has been tracking this vulnerability and its exploits since 10th of December 2025.

Insights from the CrowdSec network reveal that the attackers trying to exploit CVE-2025-55523 are composed of a fairly even mix of opportunistic and targeted actors. Some attackers employ preliminary reconnaissance, while others use indiscriminate scanning. Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2025-55523 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2025-55523 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

Attackers exploit the /download_work_dir_file endpoint by supplying a crafted path parameter (e.g., /etc/passwd) to perform arbitrary file downloads, enabling unauthorized access to sensitive files on Agent-Zero systems.