tRPC allows users to build & consume fully typesafe APIs without schemas or code generation. In versions starting from 11.0.0 to before 11.1.1, an unhandled error is thrown when validating invalid connectionParams which crashes a tRPC WebSocket server. This allows any unauthenticated user to crash a tRPC 11 WebSocket server. Any tRPC 11 server with WebSocket enabled with a createContext method set is vulnerable. This issue has been patched in version 11.1.1.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| @trpc/server(npm) | 11.0.0 | 11.1.1 | N/A |
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