cvedb.io
CVE-2026-47769
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-07-23T18:16:53.920 · Last modified 2026-07-23T19:16:54.427

Summary

APIFold reads an OpenAPI 3.x or Swagger 2.x specification and generates a live, production-ready MCP server endpoint. Prior to commit 7f19b52280f414f57af2b79a95333d1c8fbeece5, the `/webhooks/:serverSlug/:eventName` endpoint accepts arbitrary unauthenticated JSON and stores it in Redis and the `webhook_events` PostgreSQL table without any signature check or authentication requirement. The root cause is that `createWebhookRouter` is called at `server.ts:188` without a `validators` map, so `receivers.ts:80`'s optional-chaining guard evaluates to `undefined` and the signature-validation block (`receiver.ts:81–95`) is unconditionally skipped. Any unauthenticated network client that knows a valid server slug can inject arbitrary payloads, which are subsequently served as trusted resource state t

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.