A privacy vulnerability was found in the privatebroadcast feature of Bitcoin Core 31.0; a fix will be released in version 31.1.

CoinFeed reported on June 12 that the Bitcoin Core team announced on the X platform that the newly introduced `-privatebroadcast` feature in Bitcoin Core version 31.0 has a privacy vulnerability that could potentially leak the sender's IP address to the receiving node under certain network conditions. A fix is ​​forthcoming and will be released with version 31.1.