Private Broadcast May Reveal Sender IP Address in Bitcoin Core 31.0

Headline:
Private Broadcast May Reveal Sender IP Address in Bitcoin Core 31.0

Summary:
This lead was identified from Bitcoin Core Blog. It has been saved for accountability coverage and should be reviewed against the original source before expansion.

What the record says:
The source headline is: Private Broadcast May Reveal Sender IP Address in Bitcoin Core 31.0. The source summary says: We have become aware of a privacy bug in the -privatebroadcast feature, newly introduced in Bitcoin Core 31.0, that may cause the originator’s IP address to be revealed to the receiving peer under certain network conditions. A fix is forthcoming and will be released with 31.1. Users of -privatebroadcast are advised to apply one of the workarounds below until 31.1 is released. Affected users This bug affects users where all the following are true: The node is running Bitcoin Core 31.0 and -privatebroadcast is set. Transactions are broadcast using the sendrawtransaction RPC. Wallet RPCs (sendtoaddress, sendall, etc.) do not use private broadcast and are not affected. Tor is reachable for outbound connections. Outbound IPv4 or IPv6 connections can be made directly. No -onlynet restriction excludes them, and no -proxy=... value applies to them. BIP324 v2 transport is not disabled with -v2tra

Why it matters:
This may be relevant to public accountability, consumer protection, government oversight, fraud monitoring, or financial transparency depending on the source record.

What is not yet proven:
This draft should not be treated as proof beyond what the linked source directly supports. Avoid adding accusations, private information, or copied text from the original source.

Source:
https://bitcoincore.org/en/2026/06/06/privatebroadcast-ip-leak/

AI writer note: OPENAI_API_KEY is empty, so this was generated with the built-in safe fallback writer.