January 27 News, Ethereum has emerged with new technical concerns following the Fusaka upgrade. Research organization MigaLabs released a report stating that as the number of blob data packets submitted by Layer2 networks to the Ethereum mainnet increases, the network becomes more prone to failures or discards when processing high-data-volume blocks. This indicates that current Ethereum is not yet fully adapted to higher-scale data throughput demands.
The Fusaka upgrade was deployed in December 2025, with the core goal of providing higher data channels for Layer2 scaling. Before the upgrade, each block could carry a maximum of 9 blobs, while the upgrade roadmap allows capacity to eventually increase up to 8 times the original. Ethereum Foundation executive Alex Stokes also admitted at the time that this is a very new technology, and the network’s performance under extreme conditions remains uncertain.
Shortly after the upgrade, Ethereum developers began gradually raising the blob limit. The first adjustment increased capacity to 15, the second update on January 7 further increased it to 21. However, MigaLabs found that high-blob blocks approaching the limit often cause subsequent block propagation failures or delays, which in turn put pressure on network stability.
Leonardo Bautista Gomez, founder of MigaLabs, stated that this is not alarmist but a reminder to Ethereum core developers that before fully understanding network feedback, they should not blindly increase blob capacity. He believes that under high data loads, distributed nodes already face physical and network bottlenecks when propagating large amounts of information.
The PandaOps team under the Ethereum Foundation also observed similar phenomena. Engineer Sam Calder-Mason pointed out that some issues may be related to “time betting,” where validators delay block publication to increase MEV profits, thereby amplifying instability caused by high-blob blocks. However, he also emphasized that the overall network is not currently in danger, but before further expansion, more efficient data propagation mechanisms need to be deployed.
This ongoing technical contest over Ethereum blobs and Layer2 scaling is becoming a key topic in the 2026 Ethereum roadmap. If a balance between throughput and stability cannot be achieved, future expansion of Ethereum’s data layer may be more challenging than expected.
Disclaimer: The information on this page may come from third parties and does not represent the views or opinions of Gate. The content displayed on this page is for reference only and does not constitute any financial, investment, or legal advice. Gate does not guarantee the accuracy or completeness of the information and shall not be liable for any losses arising from the use of this information. Virtual asset investments carry high risks and are subject to significant price volatility. You may lose all of your invested principal. Please fully understand the relevant risks and make prudent decisions based on your own financial situation and risk tolerance. For details, please refer to
Disclaimer.
Related Articles
Research discloses security vulnerabilities in third-party AI routers that could allow cryptocurrency to be stolen
University of California researchers warn that some third-party AI large language model routers have security risks, which could lead to crypto assets being stolen. Testing found multiple routers injecting malicious code to steal credentials. Developers are advised to avoid transmitting private keys through AI agents and to strengthen security measures.
GateNews21m ago
University of California research paper: AI agent routers have a critical vulnerability, stealing 26 secret encrypted credentials
A study by the University of California reveals security vulnerabilities in the supply chain of large language models (LLMs), especially malicious man-in-the-middle attacks that third-party routers may carry out. The research found that 26 routers injected malicious commands to steal credentials and sensitive data. Users have difficulty noticing the boundary between credential handling and theft, and the “YOLO mode” further increases security risk. The study recommends that developers isolate sensitive operations and choose router services with transparent auditing to strengthen protection.
MarketWhisper1h ago
South Korean gaming giant NXC trims BTC and ETH, bringing its crypto asset holdings down to 147.6 billion KRW
NXC’s merger audit report shows that as of the end of 2025, its crypto asset holdings were 147.6 billion South Korean won, down 15.2% from the previous year. NXC has sold a stake in a certain exchange and decided to dispose of all its shares in Korbit, while also acquiring the European company CLI Group through its subsidiary to advance business diversification.
GateNews1h ago
Last week, spot Ethereum ETFs saw net inflows of $187 million, with BlackRock’s ETHA leading with net inflows of $168 million.
Last week, spot Ethereum ETFs recorded net inflows of $187 million, among which BlackRock’s ETHA had the largest net inflow, reaching $168 million. Fidelity’s FETH saw net outflows of $62.1274 million, with total net asset value of $12.96 billion.
GateNews1h ago
A swing-trading whale sold 5,000 WETH on Cowswap, with an unrealized profit of $1.09M
Gate News message: On April 13, according to on-chain analyst Ai Yi monitoring, the swing whale address 0x54d...e6029 is currently placing a limit sell order for 5,000 WETH on Cowswap, with a total value of $11.01 million. This whale frequently uses $10 million for swing trading. On March 30, it built its ETH position at a relatively short-term low point at $1,985. If the sale is successful this time, it will earn a profit of $1.09M.
GateNews2h ago
Bitcoin, Ethereum, and Arbitrum Lead Top NFT Sales of Week
The NFT sector experienced notable sales this week, led by Bitcoin, Ethereum, and Arbitrum. Top sales included the $X@AI BRC-20 NFT at $8,097,669, reflecting growing investor confidence in the market. Other blockchains like Polygon and Flow also had significant sales.
BlockChainReporter2h ago
