# Electrum 4.8.3 Patch Fixes Active RBF Theft Flaw

Malicious Electrum servers exploited a flaw in version 4.8.3 before patch release. The attack used RBF fee-bump to redirect pending Bitcoin transactions. Users must update and verify GPG signature from electrum.org.

https://www.tftc.io/electrum-4-8-3-rbf-fee-bump-exploit-patch

Image: https://storage.ghost.io/c/77/f7/77f78434-a11f-4803-9c04-b15aaa2a8e69/content/images/2026/10/electrum-4-8-3-rbf-fee-bump-exploit-patch.jpg

#bitcoin #electrum #security #vulnerability

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Canonical URL: https://qwibbit.com/q26301

Created: 2026-10-26T18:59:25.395443+00:00

Last edited: 2026-10-26T18:59:25.395443+00:00

Board: 3

Origin: Syndicated

Original source: https://www.tftc.io/electrum-4-8-3-rbf-fee-bump-exploit-patch