In a recent blow to the DeFi landscape, a prominent protocol has fallen victim to a price manipulation attack on its stablecoin pools hosted on Curve Finance: Zunami Protocol. The attack has resulted in an estimated loss of over $2.1 million, raising concerns about the security and stability of DeFi protocols. As the investigation unfolds, the incident sheds light on the persistent vulnerabilities within the DeFi ecosystem.

Uncovering the Attack on Zunami Protocol’s Stablecoin Pools

On August 13th, Zunami Protocol took to Twitter to confirm the occurrence of an attack on its “zStables” pools, which house the Zunami Ether (zETH) and Zunami USD (UZD) stablecoins. The attack targeted the heart of the protocol’s revenue aggregation mechanism, with initial reports highlighting a manipulation of prices within the Curve Finance platform. While Zunami assured its user base that collateral remained secure, the incident triggered a rigorous investigation to identify the scope of the exploit.

Read more: Curve Finance Pools Hit by $47M Reentrancy Vulnerability

The Magnitude of the Exploit: A $2.1 Million Blow

Another Attack On Curve Finance
Source: VMware Blog

The blockchain security firm PeckShield was among the first to detect the attack on Curve Finance on August 13th at 10:47 UTC. Shortly thereafter, Zunami Protocol confirmed the breach, acknowledging the severity of the incident. According to PeckShield’s estimations, the price manipulation attack resulted in a staggering loss of more than $2.1 million from Zunami’s Curve Pool. Ironblocks, another reputable blockchain security firm, arrived at a similar conclusion, underscoring the magnitude of the exploit.

Continuing Vulnerabilities in DeFi Liquidity Pools on Curve Finance

This attack marks yet another alarming incident in the DeFi space, particularly within liquidity pools hosted on Curve Finance. The exploit’s focus on price manipulation raises concerns about the robustness of existing security measures and the resilience of DeFi protocols in the face of evolving threats. While the attack was not related to the Vyper vulnerability that had previously impacted the ecosystem, it reinforces the need for a comprehensive security framework to safeguard users’ funds and maintain trust in the DeFi sector.

Read more: Vyper Smart Contract Language: Exposing DeFi Ecosystem to Stress Tests


Zunami Protocol’s exploited stablecoin pools highlight DeFi’s vulnerability, especially in liquidity pools like Curve Finance. The incident urges the DeFi community to enhance security, fortify against threats, and safeguard decentralized finance’s future. It’s a stark reminder that DeFi’s potential must align with robust security to protect users and investments.

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