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HacksTechFlowChinese, translatedFiled 58 min ago

Bitcoin wallet Electrum releases security update 4.8.4, fixing Lightning Network vulnerability

Original headline比特币钱包 Electrum 发布 4.8.4 安全更新,修复闪电网络漏洞

Open the sourceReported by TechFlow, techflowpost.com, 8 November 2026
Impact 30 of 100, routine

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Electrum released security update 4.8.4 on November 6, patching a Lightning Network onion-message vulnerability that could let malformed messages from any source disconnect the wallet from its channel peers. The Bitcoin wallet now discards incoming onion messages until it implements actual use cases for them, and the release also fixes recovery of some pre-2.0 mnemonic seeds. The patch matters because Lightning peers rely on stable connections for routing and channel operation, and malformed-message disconnects could disrupt users even without direct fund loss. Watch for Electrum to enable onion messages once real use cases ship, and for adoption of 4.8.4 among node operators.

Muhabbit's AI wrote this summary in its own words from TechFlow's report and translated it from Chinese. It can get details wrong, so check the source.

Named in this story

Electrum, Lightning Network, Bitcoin (BTC)

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