Back Odaily.News

Bitcoin Core Team: Privacy Vulnerability in privatebroadcast Feature of Version 31.0

Odaily.News • June 12, 2026

Odaily reported that the Bitcoin Core team posted on X platform, indicating that the privatebroadcast feature newly introduced in Bitcoin Core version 31.0 contains a privacy vulnerability. Under certain network conditions, it may leak the sender's IP address to the receiving node. A fix will be released with version 31.1.

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Bitcoin Core v31.0 Privacy Bug Exposes IP Addresses Under Certain Conditions Bitcoin Core has confirmed a privacy vulnerability in version 31.0 that could leak the sender's IP address under specific network conditions. The issue arises from the handling of the privatebroadcast feature, potentially exposing users running full nodes to privacy risks. This vulnerability affects only those using Bitcoin Core v31.0, while users of third-party wallets remain unaffected. The Bitcoin Core team is working on a patch, which will be included in the upcoming v31.1 release. Users are advised to downgrade to version 28.0 or wait for the patch if privacy is a concern. The bug was disclosed responsibly, with the project emphasizing the importance of user privacy. This incident highlights ongoing challenges in maintaining privacy at the network protocol level. The patch is expected to be released in the coming weeks. 3 sources 58

Extracted Entities

Bitcoin Core Team: Privacy Vulnerability in privatebroadcast Feature of Version 31.0

The full story

Extracted Entities

Attack Types (1)

Companies (2)

CWE Weaknesses (1)