News Report Technology
September 25, 2024

Arbitrum Completes ArbOS 32 Upgrade, Fixing Security Vulnerabilities

In Brief

Arbitrum has completed the upgrade to ArbOS 32 and is urging node operators on Arbitrum One, Nova, and Sepolia to upgrade to Nitro v3.2.0.

Arbitrum Completes ArbOS 32 Upgrade, Fixing Security Vulnerabilities

Ethereum Layer 2 scaling solution Arbitrum announced that it has successfully completed the upgrade to ArbOS 32 across its Arbitrum One, Nova, and Sepolia networks.

Arbitrum emphasized that node operators on these networks who have not yet performed the upgrade must now update their nodes to at least Arbitrum Nitro v3.2.0. In contrast, validator nodes are specifically required to upgrade to version v3.2.1 to maintain compatibility.

The latest release includes security fixes activated by the upgrade, with the Arbitrum Security Council planning to carry out an emergency action to implement ArbOS 32 in the coming days. This is why the version upgrade is necessary. To provide ample time for this update, a binary of the release has been made available in advance, with the source code set to be released shortly before the upgrade action takes place.

This upgrade was coordinated with the Security Council, which approved the emergency action to address a mispricing issue within Arbitrum Stylus. This vulnerability had the potential to cause a denial-of-service attack, allowing a malicious contract to crash network nodes and overcharge Stylus contracts for SLOAD operations.

Arbitrum Introduces Nitro V3.2.0

Arbitrum is a Layer 2 scaling solution designed to enhance Ethereum’s scalability and efficiency by using rollup technology. This approach increases transaction throughput and reduces costs while maintaining the security features of the Ethereum network. The Arbitrum ecosystem consists of multiple Layer 2 scaling solutions, including two active blockchains: Arbitrum One and Arbitrum Nova.

Earlier this week, Arbitrum introduced the Arbitrum Nitro v3.2.0 update, which brings various stability improvements and other adjustments. Notably, this version does not introduce any configuration changes compared to the previous v3.1.2 release.

Disclaimer

In line with the Trust Project guidelines, please note that the information provided on this page is not intended to be and should not be interpreted as legal, tax, investment, financial, or any other form of advice. It is important to only invest what you can afford to lose and to seek independent financial advice if you have any doubts. For further information, we suggest referring to the terms and conditions as well as the help and support pages provided by the issuer or advertiser. MetaversePost is committed to accurate, unbiased reporting, but market conditions are subject to change without notice.

About The Author

Alisa, a dedicated journalist at the MPost, specializes in cryptocurrency, zero-knowledge proofs, investments, and the expansive realm of Web3. With a keen eye for emerging trends and technologies, she delivers comprehensive coverage to inform and engage readers in the ever-evolving landscape of digital finance.

More articles
Alisa Davidson
Alisa Davidson

Alisa, a dedicated journalist at the MPost, specializes in cryptocurrency, zero-knowledge proofs, investments, and the expansive realm of Web3. With a keen eye for emerging trends and technologies, she delivers comprehensive coverage to inform and engage readers in the ever-evolving landscape of digital finance.

Hot Stories

Cantina: Redefining Security in the Web3 Era

by Victoria d'Este
October 13, 2025

0G Labs is Rewriting the Rules for Decentralized AI

by Victoria d'Este
October 13, 2025

AuditHub: Veridise Unveils Continuous Security for Web3

by Victoria d'Este
October 13, 2025
Join Our Newsletter.
Latest News

7 Ways AI Can Supercharge Prediction Markets In 2025

by Alisa Davidson
October 13, 2025

The Calm Before The Solana Storm: What Charts, Whales, And On-Chain Signals Are Saying Now

Solana has demonstrated strong performance, driven by increasing adoption, institutional interest, and key partnerships, while facing potential ...

Know More

Crypto In April 2025: Key Trends, Shifts, And What Comes Next

In April 2025, the crypto space focused on strengthening core infrastructure, with Ethereum preparing for the Pectra ...

Know More
Read More
Read more
Cantina: Redefining Security in the Web3 Era
Interview Business Markets Technology
Cantina: Redefining Security in the Web3 Era
October 13, 2025
0G Labs is Rewriting the Rules for Decentralized AI
Hack Seasons Interview Business Markets Technology
0G Labs is Rewriting the Rules for Decentralized AI
October 13, 2025
From Liquidity to Perps: How Macro Flows and Stablecoins Are Rewiring Crypto Markets
Hack Seasons Opinion Business Markets
From Liquidity to Perps: How Macro Flows and Stablecoins Are Rewiring Crypto Markets
October 13, 2025
AuditHub: Veridise Unveils Continuous Security for Web3
Hack Seasons Opinion Business Markets Software Technology
AuditHub: Veridise Unveils Continuous Security for Web3
October 13, 2025