MCP Observatory
npm analyzed 1.4.1

@frontmcp/sdk

v1.4.1
npm

FrontMCP SDK

maintainer
davidfrontegg
license
Apache-2.0
first seen
2026-06-09
last seen
2026-06-14
releases · 30d
3
short id
risk21/100 · heuristic grade
B low
  • vulnerabilitiesattested+9
  • recent driftinferred+12
  • inherited (deps)attested+14
  • trust mitigatorsmixed−14

attestedinferredmixed

The A–E grade is our heuristic synthesis — a "review this" prompt, not a verdict. Each factor is tagged by what backs it: attested (a verifiable record), reported (a third party's claim), or inferred (our own heuristic, e.g. permissions). See methodology.

graded 9m ago · see ecosystem CVEs →

risk trajectory2 movements
  • C · 45 → B · 21
  • C · 57 → C · 45
vulnerabilities1 CVEs · grade factor +9
HIGH
mcp-from-openapi is Vulnerable to SSRF via $ref Dereferencing in Untrusted OpenAPI Specifications EPSS 0% CVE-2026-39885 CVSS 7.5 affects [{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.3.0"}]},{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.4"}]},{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.4"}]}]fixed in 2.3.0GHSANVDGHSAGHSA

inherited (deps) · grade factor +14

inherited via dependencies3
HIGH
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse via @frontmcp/protocol · 2 hops CVE-2026-25536 fixed in 1.26.0
HIGH
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability via @frontmcp/protocol · 2 hops CVE-2026-0621 fixed in 1.25.2
HIGH
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default via @frontmcp/protocol · 2 hops CVE-2025-66414 fixed in 1.24.0
tool safetyall quiet

No tool-safety findings — heuristic detectors run on the compute-risk cadence; a finding appears when a tool trips a rule.

other grade factorsevidence elsewhere
embed badgereadme-ready
live risk-grade badge preview [![MCP Observatory risk grade](https://mcpobservatory.com/servers/npm:@frontmcp/sdk/badge.svg)](https://mcpobservatory.com/servers/npm:@frontmcp/sdk/security)

Heuristic, inferred signals — false positives (legitimately powerful tools, forks, language ports) are expected. Treat each as "review this", not a verdict. See the ecosystem-wide picture on the security hub, or the fleet security of davidfrontegg.