We will be upgrading our Ethereum consensus (Lighthouse) nodes to the latest stable version (v8.1.1) to incorporate a mandatory security fix along with networking and validator client bug fixes.
Notable changes: --- - Security: Critical security vulnerability fix affecting all prior Lighthouse versions — further details to be disclosed by the Lighthouse team in the coming days
- Bug Fixes: Validator Client — Fixed a regression from `v8.1.0` where the VC head monitoring stream would continuously time out, causing repeated Head service failed warnings. Networking — Fixed duplicate data columns in `DataColumnsByRange` responses caused by skip slots, which was causing peers to downscore nodes with `DuplicatedData` errors. Networking — Snappy decoding errors are now correctly classified as `InvalidData` instead of `IoError`, fixing improper error handling in RPC message decoding. Memory — Fixed a slow memory leak on long-running nodes caused by missing prune calls for the `observed_column_sidecars` cache during finalization Sync — Fixed head chain processing to correctly sort by peer count in descending order, improving sync peer selection
- Networking Improvements: Peers sending invalid RPC requests that result in decoding errors are now penalized and disconnected ---