Bollcoin, October 25: Bitcoin wallet Electrum posted on X detailing the vulnerability fixed in version 4.8.3. According to its GitHub security advisory, the flaw is high-severity and affects all versions prior to 4.8.3: a malicious Electrum server can intercept a transaction the user has just broadcast and replace it in the wallet history with a conflicting transaction paying an attacker's address; if the user applies RBF to raise the fee on that transaction, the wallet will sign the transaction and send the funds to the attacker. Electrum said some servers have already carried out this attack in the wild, and two users have so far reported related cases, one of whom lost funds by raising the fee; the specific amount was not disclosed.