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ZachXBT flags suspected exploit involving Polymarket’s UMA adapter contract on Polygon

The Block
On-chain investigator ZachXBT reported a suspected exploit of Polymarket’s UMA adapter contract on Polygon, resulting in approximately $520,000 in drained funds.

Summary

On-chain investigator ZachXBT has alerted the crypto community to a suspected exploit involving the UMA CTF Adapter contract on the Polygon blockchain, which facilitates market resolutions for the prediction platform Polymarket. Reports indicate that two associated addresses were drained of roughly $520,000. While Polymarket has not yet confirmed the incident, the event highlights ongoing security concerns for the platform, which has previously faced governance attacks and third-party infrastructure vulnerabilities.

(Source:The Block)