Bitcoin News: Bitcoin Core disclosed a vulnerability affecting Tor traffic

Bitcoin News posted on the X platform stating that Bitcoin Core has disclosed a vulnerability: when service providers bundle Bitcoin Core with Tor, incoming Tor traffic is treated as local traffic, causing nodes with whitelist settings to relax spam and privacy restrictions towards external nodes, thereby inheriting a "trusted" status across thousands of nodes.

The fix for this vulnerability was released in October 2025, and Bitcoin Core announced the details two weeks after stopping support for the 29.x series. Additionally, there is a high-severity vulnerability that may prevent mining nodes from constructing valid blocks until a restart; currently, no related attacks have been reported, and nodes without whitelist settings are unaffected.