CVE-2026-7642 pskill9 website-downloader MCP index.ts download_website os command injection
Remote attackers can execute arbitrary OS commands via the outputPath argument in the pskill9 website-downloader MCP interface.
- 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-2026-7642?
CVE-2026-7642 is a medium-severity command injection vulnerability in pskill9 website-downloader, published on 2 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 pskill9 website-downloader up to 0.1.0. This affects the function download_website of the file src/index.ts of the component MCP Interface. Performing a manipulation of the argument outputPath results in os command injection. The attack may be initiated remotely. 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.
Which versions are affected by CVE-2026-7642?
How do I fix CVE-2026-7642?
No fix has been published for CVE-2026-7642 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-7642 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7642 exists.
Sources
Also known as GHSA-xm3g-p4gq-33vr.