Key Takeaways:
EURR, a euro-denominated stablecoin issued by StablR, broke its peg by 20% on May 24, 2026, after a suspected exploit drained more than $10 million from two of its smart contracts, causing its USDR stablecoin to also decouple.
The incident was first flagged by blockchain investigator ZachXBT, who identified the potential exploit on Saturday. "Two contracts linked to European stablecoin issuer StablR’s EURR and USDR stablecoins may have been exploited," ZachXBT said, noting the attacker's wallet appears to have been funded via the Cross-Chain Transfer Protocol (CCTP) on Noble. Initial loss estimates of $3 million were later revised to over $10 million.
StablR is a Malta-based firm focused on providing what it calls compliant and transparent stablecoin infrastructure. The company, which issues both the euro-pegged EURR and the dollar-pegged USDR, raised €3.3 million in a 2023 seed round with backing from Deribit and Maven 11. In a move to support regulated stablecoins in Europe, Tether announced a strategic investment in the company in 2024, a fact that now sits in stark contrast to the exploit.
The sharp de-pegging of EURR threatens a wider collapse of the StablR ecosystem, as holders may rush to redeem assets. This event severely damages trust in smaller stablecoin issuers, especially as the European Union prepares its comprehensive Markets in Crypto-Assets (MiCA) regulation. The incident draws a sharp contrast with larger, more established issuers like Circle and Paxos, which command a combined market capitalization orders of magnitude larger and are perceived as more resilient. The exploit will likely accelerate calls for stricter enforcement and regulatory oversight for all stablecoin issuers in the region.
This article is for informational purposes only and does not constitute investment advice.
