XRP Ledger developers said the network’s architecture makes flash loan exploits structurally impossible.
XRP News
A draft amendment published on the XRP Ledger (XRPL) standards repository on May 27 included a single line in its security section: flash loan attacks are structurally impossible on the network. The document proposed concentrated liquidity and StableSwap-style pools for XRPL's native automated market maker (AMM). Its security notes identified the network's transaction architecture as the reason the exploit class cannot function there.
Flash loans are a smart contract feature that allows a trader to borrow large sums with no collateral, provided the loan is repaid within the same transaction. Legitimate uses include arbitrage between exchanges, collateral swaps, and liquidation bots that keep lending markets solvent. When turned into an attack, the borrowed funds are used to manipulate a price oracle or drain a liquidity pool, with the entire sequence completing before the transaction settles.
Why the Architecture Matters
XRPL transactions are atomic, meaning they either succeed or fail in full. Unlike Ethereum (ETH), an XRPL transaction cannot call into another contract mid-execution. A flash loan attack requires at least three nested operations inside a single transaction envelope, a structure the XRP Ledger does not support.
Two of the most costly decentralized finance (DeFi) exploits of the past two months relied on flash loans. Thorchain lost approximately $10.8 million on May 15 to a cross-chain attack. Drift Protocol, a Solana-based perpetual exchange, and KelpDAO, a liquid restaking protocol on Ethereum, together recorded losses exceeding $600 million through April 2026. Cross-chain bridges have lost more than $2.8 billion to attacks since 2021, according to Chainalysis.
Closing the flash loan attack vector also closes the legitimate uses that accompany it. Protocols such as Aave and dYdX offer flash loans as a product. Traders use them for single-transaction arbitrage. Liquidation bots rely on them to resolve undercollateralized positions without tying up capital for extended periods.
Growing RWA Footprint Raises the Stakes
Tokenized real-world assets (RWAs) on the XRP Ledger have crossed $3 billion in total value. A pilot involving Ripple, JPMorgan, Mastercard, and Ondo Finance last month processed a tokenized US Treasury redemption in under five seconds. If the AMM amendment passes, it would narrow the capital-efficiency gap that has kept XRPL's DeFi activity behind Ethereum.
The open question for institutional capital is whether structural exploit resistance functions as a practical competitive advantage. Institutions may continue to follow liquidity regardless of how a network is built, particularly given Ethereum's deeper markets and more mature DeFi ecosystem.
This article contains links to third-party websites or other content for information purposes only (“Third-Party Sites”). The Third-Party Sites are not under the control of CoinMarketCap, and CoinMarketCap is not responsible for the content of any Third-Party Site, including without limitation any link contained in a Third-Party Site, or any changes or updates to a Third-Party Site. CoinMarketCap is providing these links to you only as a convenience, and the inclusion of any link does not imply endorsement, approval or recommendation by CoinMarketCap of the site or any association with its operators. This article is intended to be used and must be used for informational purposes only. It is important to do your own research and analysis before making any material decisions related to any of the products or services described. This article is not intended as, and shall not be construed as, financial advice. The views and opinions expressed in this article are the author’s [company’s] own and do not necessarily reflect those of CoinMarketCap.
