CVE-2025-59942 go-f3 module vulnerable to integer overflow leading to panic

go-f3 is a Golang implementation of Fast Finality for Filecoin F3. In versions 0.8.6 and below, go-f3 panics when it validates a "poison" messages causing Filecoin nodes consuming F3 messages to become vulnerable. A "poison" message can can cause integer overflow in the signer index validation,...