CVE-2026-7599 Dayoooun hwpx-mcp MCP index.ts export_to_html path traversal

Medium 5.3 Published Updated

Attackers can exploit path traversal in hwpx-mcp to read or modify arbitrary files via the output_path argument.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-7599?

CVE-2026-7599 is a medium-severity path traversal vulnerability in Dayoooun hwpx-mcp, published on 1 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was detected in Dayoooun hwpx-mcp 0.2.0. This affects the function save_document/export_to_text/export_to_html of the file mcp-server/src/index.ts of the component MCP Interface. Performing a manipulation of the argument output_path results in path traversal. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-22

Which versions are affected by CVE-2026-7599?

How do I fix CVE-2026-7599?

No fix has been published for CVE-2026-7599 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-7599 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7599 exists.

Sources

Also known as GHSA-r4mm-g464-9mwv.

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