| Package | Affected versions | Patched versions |
|---|---|---|
| nest | < 11.1.19 | 11.1.19 |
| @nestjs/microservices | < 11.1.19 | 11.1.19 |
Attacker sends many small, valid JSON messages in one TCP frame → handleData() recurses once per message; buffer shrinks each call → maxBufferSize is never reached; call stack overflows instead → A ~47 KB payload is sufficient to trigger RangeError
Fixed in @nestjs/[email protected]
Discovered by https://github.com/hwpark6804-gif
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