Batch Swap Logic

Definition ∞ Batch swap logic is a computational method enabling multiple asset exchanges to be processed concurrently within a single transaction. This approach aggregates individual swap requests into a larger unit for execution. Batch swap logic can optimize transaction efficiency and potentially reduce associated network fees. It often serves to enhance throughput on decentralized exchanges and automated market makers.
Context ∞ The implementation of batch swap logic is a key area of development aimed at improving the scalability and cost-effectiveness of decentralized finance platforms. Its effectiveness is frequently discussed in relation to preventing front-running and maximizing user value. Advancements in this logic are continuously sought to support larger transaction volumes and more complex trading strategies.

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→Logic Vulnerability

→Smart Contract Audit

→Decentralized Finance

Balancer Protocol Drained by Compounding Rounding Error and Access Flaw

A subtle rounding-down error in swap calculations, combined with flawed access control, allowed the attacker to systematically drain over $100M from stable pools.

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→Multi-Chain Contagion

→DeFi Exploit

→Smart Contract Flaw

Balancer V2 Stable Pools Drained Exploiting Precision Rounding Flaw

Precision rounding errors in core swap logic created an economic invariant manipulation, exposing multi-chain liquidity to systemic theft.

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→Emergency Pause

→Financial Loss

→Protocol Exploit

Balancer V2 Pools Drained by Critical Multi-Chain Smart Contract Rounding Flaw

A low-level smart contract rounding error in the `batchSwap` function allowed for precision manipulation, compromising over $128M in multi-chain liquidity.

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→Generalized Swap

→Critical Vulnerability

→Multi-Chain Attack

Balancer V2 Composable Pools Drained via BatchSwap Rounding Flaw

A critical rounding error in the `batchSwap` upscale logic allowed adversaries to exploit deferred settlement mechanisms, resulting in over $128M in multi-chain asset loss.

→On-Chain Forensics

→Oracle Dependency

→System-Level Vulnerability

DeFi Protocol Balancer Drained $128 Million Exploiting Smart Contract Flaw

A critical rounding error in the batchSwap logic of Composable Pools enabled a multi-chain asset drain, compromising liquidity and user capital.

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→Ethereum Layer 2 Risk

→Boosted Pool Flaw

→Automated Market Maker

Decentralized Exchange Pools Drained across Chains Exploiting Smart Contract Rounding Error

A critical rounding error in the batchSwap function enabled an access control bypass, leading to systemic, multi-chain asset siphoning.

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→Liquidity Pool Drain

→Batch Swap Logic

→Access Control Flaw

Balancer V2 Drained Multi-Chain Exploiting Boosted Pool Access Control Flaw

A critical access control and callback flaw in complex pool logic allowed unauthorized batch swaps, creating systemic risk across all interconnected chains.

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→Economic Exploit

→Vault Security

→Financial Primitive

Balancer V2 Stable Pools Exploited via Precision Rounding Error

A low-level arithmetic precision flaw in Balancer's V2 Composable Stable Pools allowed invariant manipulation, resulting in a catastrophic $128M asset drain across multiple chains.