Bitcoin Core 32.1 released
- Source
- Bitcoin Corebitcoincore.org
- Originally published
- Original length
- 1 min read
- Language
- English
SATWEI summary
Private broadcast in Bitcoin Core 32.1 no longer risks exposing the sender's IP address, a leak that could occur when a failed v2 connection retried over v1 directly instead of through Tor. The default -maxconnections rises from 125 to 200, and outgoing transaction relay is rate-limited through a global backlog rather than per peer.
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Slow unbounded memory growth on paused pre-BIP31 peers
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Bitcoin Core 30.4 released
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Unbounded memory growth through TCP urgent data on non-Linux systems
Windows, macOS and BSD nodes could be crashed by a connected peer sending TCP urgent data, which slipped past paused reads in the select() backend and queued memory without limit (CVE-2026-117350). Linux nodes use poll() and are not affected. Bitcoin Core 32.1, 31.2, 30.4 and 29.5 fix the Medium-severity bug, which an LLM scan under Project Loupe found.
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