agent0ai agent-zero 1.7/1.8/1.9/1.10 FileBrowser file_browser.py FileBrowser.__init__ path traversal

Summaryinfo

A vulnerability was found in agent0ai agent-zero 1.7/1.8/1.9/1.10. It has been rated as problematic. Affected by this issue is the function FileBrowser.__init__ of the file python/helpers/file_browser.py of the component FileBrowser. The manipulation leads to path traversal. This vulnerability is documented as CVE-2026-51853. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in agent0ai agent-zero 1.7/1.8/1.9/1.10. This issue affects the function FileBrowser.__init__ of the file python/helpers/file_browser.py of the component FileBrowser. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-51853 since 06/08/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/30/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• agent0ai

Name

• agent-zero

Version

• 1.7
• 1.8
• 1.9
• 1.10

Website

• Product: https://github.com/agent0ai/agent-zero/

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