Ripple Warns Node Operators of Critical XRPL Fix

Ripple's Director of Engineering Vijay Khanna sent an urgent message to XRP Ledger node operators on August 1, urging them to upgrade to version 3.2.1 as soon as possible.

The update contains a critical fix that prevents the manifest flood attack, which was observed on the XRPL network on July 31.

A manifest flood occurs when nodes accept and rebroadcast an unlimited number of manifests from unknown validator keys.

Version 3.2.1 adds four limits to prevent this attack, including a size cap per manifest, a receive cap, a send cap, and a cache cap.