Files
HealthLog/src/lib/moodlog
Marc-André BombeckandClaude Opus 4.7 b43b57f657 feat(security): pin resolved IP on outbound fetches to defeat DNS rebinding
Closes issue 217. The isPublicUrl input-time guard catches every
RFC1918 / CGNAT / loopback / link-local alt-notation, but a low-TTL
DNS record can flip between accept and dispatch. The new
pinnedPublicDispatcher resolves the hostname literally inside
undici.Agent's connect hook, refuses any address isPublicIp would
reject, and pins the connection to the first valid public address.

The five outbound paths that accept a user-supplied host route
through the dispatcher via safeFetch's requirePublicHost flag —
moodlog sync, moodlog reverse-push, the moodlog credentials probe,
the local AI client (already gated in commit 1), and the ntfy
sender. The flag now buys both the input-time check and the
connect-time pin in one call.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-28 22:32:11 +02:00
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