Ledger Silently Fixes Critical Ethereum Wallet Flaw Before Public Disclosure

A critical security flaw in Ledger's Ethereum application was quietly resolved on August 12, 2026, when version 1.22.2 of the software was released without public announcement.

The vulnerability, discovered by Ledger's own Donjon security team using AI-powered research tools, allowed malicious applications to substitute legitimate transactions with fraudulent ones during the signing process.

Despite being resolved two weeks prior, the security issue only came to light when security researcher TestMachine publicly revealed it on August 21-23.