HKUDS DeepTutor up to 1.4.0 EditFileTool EditFileTool.execute path traversal

Summaryinfo

A vulnerability was found in HKUDS DeepTutor up to 1.4.0. It has been classified as critical. The impacted element is the function EditFileTool.execute of the component EditFileTool. This manipulation causes path traversal. This vulnerability is tracked as CVE-2026-51880. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in HKUDS DeepTutor up to 1.4.0. It has been declared as critical. Affected by this vulnerability is the function EditFileTool.execute of the component EditFileTool. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

deeptutor 1.4.0 contains a path traversal issue in EditFileTool.execute. Through the live tutorbot WebSocket interface, a remote caller can induce the tool layer to write or edit absolute paths outside the intended bot workspace.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-51880 since 06/08/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/02/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

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

• HKUDS

Name

• DeepTutor

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4.0

Website

• Product: https://github.com/HKUDS/DeepTutor/

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