Electrum has patched a $BTC wallet vulnerability that allowed malicious servers to manipulate pending transactions during Replace-by-Fee RBF fee increases, potentially redirecting payments to attackers. Developers confirmed at least one theft, while the total amount stolen and the attackers’ identities remain unknown.
The issue was disclosed on Saturday, and Electrum released version 4.8.3 on October 24, adding signature verification for unconfirmed transactions. Users running older versions $BTC should upgrade immediately and carefully verify transaction addresses and amounts before signing. Users connected exclusively to trusted servers, including self-hosted servers, were not exposed to this vulnerability.$BTC
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