Ethereum (ETH) founder Vitalik Buterin has explained how the blockchain prevents denial-of-service (DoS) attacks. Buterin’s explanation comes as a response to a question from a user who expressed frustration with the contract size limit on Ethereum.
Network stability depends on data efficiency
According to Buterin, the limit on Ethereum exists as a safeguard to prevent DoS attacks. Notably, very large contracts are expensive to store in nodes, transmit or process. Thus, if there is no limit, a malicious attacker could easily deploy huge contracts that deliberately slow down the network.
Once the network is destabilized, it could give the attacker ample time to carry out fraudulent acts on-chain. Buterin is emphasizing that the size limit is not an arbitrary rule but a safety and scalability constraint to protect users.
The Ethereum founder, however, hinted at a possible change in the future. This will depend on improvements to the Merkle Patricia Trie, which currently has efficiency limitations.
“When we change the tree…we will be able to fix this and potentially have unlimited size contracts,” he stated.
Buterin suggests that plans are on to change how Ethereum stores its data to the EIP-7864’s unified binary tree upgrade. This will make state access and storage more efficient while reducing the DoS risk caused by large contracts.
This is different from the EIP-7907, which has increased the contract size limit by about 10 times the original size.
Ethereum gas costs will apply despite future upgrades
It is worth pointing out that even when the size limit is resolved, users will still have to deal with gas costs. For clarity, deploying a contract costs gas per byte of code. The cost, as per Buterin’s explanation, is approximately 82kb.
This signals that if users get an “unlimited contract size” on Ethereum, it does not mean that it would be free. The developers might have to rethink deployment gas pricing to fit the new reality.
Meanwhile, the blockchain is already planning the next upgrade for 2026, termed "Hegota. Part of the key focus of the upgrade will include state management, execution-layer optimization, and Verkle Trees.
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
Ethereum Foundation Releases New Charter: Maintains Decentralization Principles, Institutional Strategic Direction Sparks Debate
The Ethereum Foundation published a new charter on March 17, clarifying its role as a neutral coordinator committed to maintaining decentralized infrastructure and promoting the long-term development of the ecosystem. The announcement has sparked extensive discussions about leadership and institutionalization, with some industry insiders questioning the lack of specific implementation plans, while supporters believe it will help preserve network neutrality and foster innovation, highlighting Ethereum's balancing act between decentralized governance and institutional development.
GateNews6m ago
Best Altcoins to Invest in 2026? SOL Pushes Higher, and ETH Jumps to $2.2K, Yet Early Buyers Begin Circling The APEMARS’ Top 100X Coin Presale
Smart money is zeroing in on $2,050 and $2,150 today as Ethereum approaches what analysts call a decisive breakout zone. On-chain data shows whale accumulation climbing while trading volume has jumped nearly 14 percent this week, signaling that major players may be positioning before the next b
CaptainAltcoin21m ago
Lido introduces a new DVT cluster mechanism: reducing staking thresholds while strengthening the security of Ethereum validators
Lido is advancing a community staking module upgrade by introducing the "Identified DVT Cluster" (IDVTC) mechanism to optimize Ethereum staking structure, lower participation barriers, and enhance network security and stability. Each IDVTC comprises vetted stakers and leverages Distributed Validator Technology (DVT) to reduce systemic risk and increase decentralization. This feature will launch in 2026, demonstrating Lido's commitment to enhancing system resilience through architectural optimization and maintaining competitiveness.
GateNews40m ago
SEC Plans to Cancel Quarterly Earnings Report System: US Stock Transparency May Be Reshaped, Bitcoin and Ethereum Face New Variables
The US SEC plans to abolish the requirement for listed companies to publish quarterly financial reports, replacing it with two reports per year, expected to be implemented in April 2026. This measure may lower compliance costs for companies but has also sparked controversy, as it could increase information asymmetry and market volatility, affecting stock and digital asset markets.
GateNews44m ago
BTC, ETH Reach Highest Levels Since February 5, Multiple Analysts Bullish on Future Market
The crypto market has rebounded recently, with Bitcoin and Ethereum reaching new highs. Technical analysts Peter Brandt and Ali Charts have both expressed bullish sentiment, with Ethereum potentially targeting $2,600. However, some analysts like Garrett Jin maintain a cautious stance, concerned that external factors could impact the market.
GateNews59m ago
Russia's Central Bank Plans to Open Ethereum Digital Asset Channel to Break Through Sanctions and Attract Foreign Investment
The Russian Central Bank plans to submit a proposal allowing digital financial assets (DFA) to circulate on open blockchains such as Ethereum to counter Western sanctions and attract foreign investment. If the bill passes in 2026, it will improve the current market structure that relies on domestic demand and provide new opportunities for Russian enterprises in international capital markets. However, technical integration and legal barriers still need to be overcome.
MarketWhisper1h ago
