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EIP-712 Domain Spoofing via Double-Fetch
Reported on March 21, 2026
A flaw in EIP-712 typed-data signing allowed domain spoofing on device confirmation. A compromised host could show a trusted domain name/version on the Trezor screen while making the device sign data for a different, attacker-controlled domain. This mismatch could mislead users into approving signatures they did not intend, potentially enabling unauthorized actions such as malicious permit approvals and fund theft.
Reported by Florian Pradines
Resolved vulnerabilities
Reported by community. Investigated. Resolved. Because your security is never optional.
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