---
title: Base post-mortem reveals sequencer bug behind back-to-back outages
url: >-
  https://www.cryptocatalyst.news/articles/2026-06-28-base-network-outages-caused-by-sequencer-bug
canonical: >-
  https://www.cryptocatalyst.news/articles/2026-06-28-base-network-outages-caused-by-sequencer-bug
date: '2026-06-28T21:04:35.744160+00:00'
category: ethereum
tags:
  - base
  - ethereum
  - sequencer
  - outage
  - blockchain
source: CoinTelegraph
source_url: >-
  https://cointelegraph.com/news/base-post-mortem-reveals-sequencer-bug-behind-back-to-back-outages?utm_source=rss_feed&utm_medium=rss&utm_campaign=rss_partner_inbound
publisher: CryptoCatalyst
summary: >-
  Base, a popular Ethereum layer-2 network, experienced two consecutive outages
  due to a bug in its sequencer system. The issue was identified as a 'race
  condition' that occurred after a system reset, preventing the sequencers from
  catching up and causing significant disruptions.
image: >-
  https://www.cryptocatalyst.news/images/articles/2026-06-28-base-network-outages-caused-by-sequencer-bug.webp
generated_by: automated editorial pipeline
---
# Base post-mortem reveals sequencer bug behind back-to-back outages

Base, a popular Ethereum layer-2 network, experienced two consecutive outages due to a bug in its sequencer system. The issue was identified as a 'race condition' that occurred after a system reset, preventing the sequencers from catching up and causing significant disruptions.

Base, an Ethereum layer-2 network, recently faced two consecutive outages due to a bug in its sequencer system. The problem was identified as a 'race condition' that occurred after the system was reset, which prevented the sequencers from properly catching up, causing the second outage. This bug caused significant disruptions in the network's operations.

According to the post-mortem report, the race condition arose when the system was reset, leading to a cascade of issues that affected the sequencers' ability to process transactions efficiently. The report highlights the importance of robust error-handling mechanisms in blockchain infrastructure to prevent such incidents in the future.

These outages underscore the critical role of sequencers in maintaining the performance and reliability of layer-2 networks. For everyday users, this means that while layer-2 solutions offer faster and cheaper transactions, they are not immune to technical issues that can disrupt service. It's a reminder of the ongoing challenges in scaling blockchain technology.

## Source

This article is a summary of reporting by [CoinTelegraph](https://cointelegraph.com/news/base-post-mortem-reveals-sequencer-bug-behind-back-to-back-outages?utm_source=rss_feed&utm_medium=rss&utm_campaign=rss_partner_inbound), written by an automated editorial pipeline. See https://www.cryptocatalyst.news/editorial-policy.

## How to cite

CryptoCatalyst.news, "Base post-mortem reveals sequencer bug behind back-to-back outages", 2026-06-28, https://www.cryptocatalyst.news/articles/2026-06-28-base-network-outages-caused-by-sequencer-bug