Client bug causing inaccurate `eth_call` data on Flashblock endpoints

Incident Report for Base

Resolved

This incident has been resolved.

Posted Oct 29, 2025 - 23:57 UTC

Monitoring

A fix has been implemented and we are monitoring the results.

Posted Oct 29, 2025 - 23:53 UTC

Identified

A bug is causing inaccurate data to be returned from `eth_call` requests when used on Flashblock RPCs. This happens only when the ‘pending’ tag is used for `eth_call`.

We’re working on a base/node release to fix this as soon as possible.

Posted Oct 29, 2025 - 23:36 UTC

This incident affected: Mainnet (Flashblocks).