THE MOST IMPORTANT ETHEREUM BUG WASN'T IN A SMART CONTRACT
Most Ethereum security discussions naturally end up around smart contracts. That's where I usually expect the biggest risks as well. This advisory changes that expectation. CVE-2026-34219 isn't found in an application or a contract. It's found in Rust libp2p-gossipsub, the networking layer that Ethereum consensus clients use to exchange blocks and attestations. That makes me look at protocol security from a different angle because reliable communication is just as important as correct execution.