Zero-Day Exploit for OpenSea Listed for Sale by Threat Actor

Zero-Day Exploit for OpenSea Listed for Sale by Threat Actor

First seen 14 Feb 2026, 13:08 UTC •Cybersecuritynews •90% similarity •37.7

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ThreatCluster

A threat actor is selling a critical severity zero-day exploit chain targeting OpenSea for $100,000 USD in Bitcoin or Monero. The exploit is reported to affect the Seaport protocol's order validation logic across Ethereum Mainnet, Polygon, and Blast, and remains unpatched and undisclosed, impacting the NFT community.

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Timeline

2026-02-14
Threat actor lists zero-day exploit for OpenSea for sale

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Tracked Entities in This Story

OpenSea Polygon Ethereum Mainnet Seaport Protocol