CVE-2026-52737

Zebra (v4.4.1 and earlier) is vulnerable to a DoS: a malicious unauthenticated P2P peer serves a block with an above-lookahead coinbase height, triggering a 67-second global sync restart that cancels honest peer downloads indefinitely. The root cause is that BlockDownloadVerifyError::AboveLookahe...

EUVD-2026-61163

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a malicious unauthenticated P2P peer can answer Zebra's outbound getblocks or FindBlocks request with a small two-hash inventory and then serve a syntactically valid block whose coinbase height is far above the local chain tip. In...

Zebra has sync restart poisoning from single unauthenticated peer via above-lookahead block

Am I affected You are affected if: 1. You run zebrad up to and including v4.4.1. 2. Your node accepts inbound P2P connections and is syncing or catching up to the chain tip. Summary A malicious peer can answer Zebra's outbound getblocks/FindBlocks request with a small two-hash inventory, then ser...

CVE-2024-52921

In Bitcoin Core before 25.0, a peer can affect the download state of other peers by sending a mutated block...

CVE-2024-52922

In Bitcoin Core before 25.1, an attacker can cause a node to not download the latest block, because there can be minutes of delay when an announcing peer stalls instead of complying with the peer-to-peer protocol specification...

CVE-2024-52922

Bitcoin Core versions prior to 25.1 are vulnerable to a flaw where an attacker can prevent a node from downloading the latest block. The root cause is a stalling behavior in an announcing peer that fails to comply with the peer-to-peer protocol specification , resulting in delays of several minut...

CVE-2024-52922

In Bitcoin Core before 25.1, an attacker can cause a node to not download the latest block, because there can be minutes of delay when an announcing peer stalls instead of complying with the peer-to-peer protocol specification...

CVE-2024-52922

In Bitcoin Core before 25.1, an attacker can cause a node to not download the latest block, because there can be minutes of delay when an announcing peer stalls instead of complying with the peer-to-peer protocol specification...

Bitcoin Core 安全漏洞

Bitcoin Core is a Bitcoin open source client for verifying the validity of blockchain transactions. A security vulnerability exists in versions of Bitcoin Core prior to 25.1. An attacker exploiting the vulnerability could cause a node to fail to download the latest block...