Batch Swap Function

Definition ∞ A batch swap function enables multiple token exchanges in one transaction. This utility optimizes decentralized exchange operations by aggregating several distinct asset conversions into a singular atomic process. By combining multiple trades, users can significantly lower transaction fees and enhance the speed of their trading activities. It streamlines the management of diverse digital asset portfolios on blockchain networks.
Context ∞ The implementation of batch swap functions is a key area of development for improving user experience and capital efficiency on decentralized exchanges. Its adoption addresses network congestion and high gas costs, which are persistent challenges in popular blockchain ecosystems. Future advancements may include more sophisticated batching strategies for complex trading scenarios.

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→Batch Swap Function

→Vault Drain

→Decentralized Exchange

Balancer V2 Pools Drained Exploiting BatchSwap Rounding Error

A critical rounding error in the `batchSwap` function allowed for precision manipulation, enabling the systematic draining of over $120 million from V2 liquidity vaults.

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→Decentralized Finance Risk

→Multi-Chain Attack

→Cross-Chain Contagion

Balancer V2 Pools Drained Exploiting Faulty Access Control and Precision Error

A critical logic flaw in V2 access control enabled unauthorized internal withdrawals, leveraging a rounding error to siphon over $100M cross-chain.

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→Smart Contract Exploit

→Risk Mitigation

→Emergency Pause

DeFi Protocol Balancer V2 Drained Exploiting Smart Contract Logic Flaw

A critical rounding error combined with batch swap logic allowed attackers to manipulate pool balances and systematically drain over $120 million across nine chains .

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→Arithmetic Logic Error

→DeFi Systemic Risk

→Decentralized Finance

DeFi Protocol Balancer Drained by Multi-Chain Smart Contract Rounding Flaw

A critical arithmetic rounding error in the core `batchSwap` function allowed an attacker to drain $128.6 million across six EVM-compatible chains.

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→Flash Loan Attack Vector

→Multi-Chain Vulnerability

→Decentralized Finance Risk

Balancer Protocol Drained $128 Million Exploiting Smart Contract Rounding Error

A critical rounding error in the batchSwap upscale logic enabled multi-chain liquidity draining, exposing systemic risk in complex DeFi pool invariants.

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→External Auditing Failure

→On Chain Forensic Analysis

→V2 Pool Compromise

Balancer V2 Pools Drained across Six Chains Exploiting Smart Contract Rounding Flaw

Precision loss in the batchSwap function created an exploitable state, allowing multi-chain asset drain via engineered transaction parameters.

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→Decentralized Finance

→Systemic Contagion Risk

→Asset Recovery Efforts

Balancer V2 Pools Drained across Multiple Chains Exploiting Rounding Flaw

A critical rounding error in the Balancer V2 Composable Stable Pool logic allowed an attacker to drain $128 million across seven blockchains.

→Access Control

→Cross-Chain Vulnerability

→Decentralized Finance

Balancer V2 Pools Drained by Multi-Chain Precision Rounding Exploit

A critical precision loss vulnerability in the Balancer V2 `batchSwap` function allowed attackers to systematically drain $128M across six chains.

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→Smart Contract Logic

→Fixed Point Arithmetic

→Invariant Manipulation

Balancer V2 Stable Pools Drained Exploiting Precision Rounding Logic Flaw

A systemic rounding flaw in Balancer V2's stable math was weaponized via batched micro-swaps, enabling catastrophic invariant manipulation.

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→Liquidity Pool Drain

→Systemic Risk

→On-Chain Forensics

Balancer V2 Pools Drained by Precision Rounding Smart Contract Flaw

A systemic precision rounding error in the V2 Vault's `batchSwap` function allowed attackers to repeatedly drain liquidity via compounded, minute discrepancies.