The Ethereum Foundation patched CVE-2026-34219, a remotely triggerable crash bug in libp2p gossipsub found by an AI agent, before any validators were

Ethereum researchers are using AI agents to hunt for vulnerabilities, shifting security work from finding bugs to proving which ones are real.

Ethereum Foundation AI agents found a remotely exploitable libp2p bug, CVE-2026-34219, but the team says triaging false positives is now the real challenge.