- Deliveries connect through a lookup hook that checks the address
actually dialled, so a host that resolves to a private address after
registration (DNS rebinding) or a tampered row cannot reach internal
services. Redirects are still not followed.
- More blocked ranges (CGNAT/100.64/10 incl. cloud metadata, multicast,
reserved, benchmarking, NAT64, 6to4, site-local, IPv4-mapped IPv6);
only ports 80/443, no credentials in the URL, https in production.
- 5 s timeout, response body discarded; dispatch no longer waits for
receivers, so a hanging endpoint cannot stall the user's request.
- Signature covers "timestamp.deliveryId.body" with X-ApiCore-Timestamp
and X-ApiCore-Delivery headers, so receivers can reject replays.
- Signing secrets are stored AES-256-GCM-encrypted; older plain rows still
work.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
