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xvector • today at 1:09 AM • 4 replies • view on HN

Why can't Apple just sandbox the damn thing? Run the renderer in a VM, call it a day.

Or just spend a few billion tokens rewriting the whole chain in a memory safe language. This nonsense is inexcusable in 2026


Replies

kccqzy • today at 1:57 AM

I sincerely believe you need much more than one billion tokens to rewrite the entire PDF dependency stack in a memory safe language. I think you underestimate how many features PDF has.

ylk • today at 9:36 AM

It's sandboxed, not in a VM but using the *OS sandbox/seatbelt. Running all renderers in a separate VM on a consumer phone sounds like a terrible time when you need to stay competitive regarding performance, responsiveness, etc.

iririririr • today at 5:33 AM

it offers just enough cover and deniability. Q.e.d this sub thread.

it's a feature. expect next exploit to also be pdf or image related.

sneurlax • today at 3:53 AM

The sandbox is just another layer