Handwriting-OCR handwriting-ocr-mcp-server 0.1.0 upload_document src/index.ts fs.readFileSync File path traversal

Summaryinfo

A vulnerability, which was classified as critical, was found in Handwriting-OCR handwriting-ocr-mcp-server 0.1.0. Affected by this issue is the function fs.readFileSync of the file src/index.ts of the component upload_document. Executing a manipulation of the argument File can lead to path traversal. This vulnerability is handled as CVE-2026-19372. It is possible to launch the attack on the local host. Additionally, an exploit exists. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability has been found in Handwriting-OCR handwriting-ocr-mcp-server 0.1.0 and classified as critical. This vulnerability affects the function fs.readFileSync of the file src/index.ts of the component upload_document. The manipulation of the argument file 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 advisory is shared for download at github.com. This vulnerability was named CVE-2026-19372. The exploitation appears to be easy. The attack needs to be approached locally. Technical details and also a exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

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

Type

• Artificial Intelligence Software

Vendor

• Handwriting-OCR

Name

• handwriting-ocr-mcp-server

Version

• 0.1.0

Website

• Product: https://github.com/Handwriting-OCR/handwriting-ocr-mcp-server/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #866270: Handwriting-OCR handwriting-ocr-mcp-server 0.1.0 Path Traversal (by gongyanyu05)

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