CVE-2026-19370 bartekke8it56w2 new-mcp geminithinking index.ts fs.readFileSync path traversal
Local attackers can exploit path traversal in the geminithinking component to read or modify arbitrary files via session arguments.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19370?
CVE-2026-19370 is a medium-severity path traversal vulnerability in bartekke8it56w2 new-mcp, published on 9 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was determined in bartekke8it56w2 new-mcp 0.1.0. This impacts the function fs.writeFileSync/fs.existsSync/fs.readFileSync of the file index.ts of the component geminithinking. This manipulation of the argument sessionCommand/sessionPath causes path traversal. The attack requires local access. 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-2026-19370?
How do I fix CVE-2026-19370?
No fix has been published for CVE-2026-19370 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-2026-19370 being exploited?
There is no known exploitation of CVE-2026-19370 in the wild and no public exploit code.
Sources
Also known as GHSA-w5g7-c885-pm69.