CVE-2026-109366 Zebra before 6.4.0 Gossiped Block Drop via Forged Coinbase scriptSig Height

Zebra before 6.4.0 contains an improper integrity validation vulnerability in the inbound gossip download path that allows unauthenticated peers to force dropping of new blocks without penalty. Attackers can serve a real block with a coinbase scriptSig rewritten to height 1, which keeps the ZIP-2...

CVE-2026-52736

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, a remote unauthenticated P2P peer can stall a Zebra node by racing an invalid block body against the valid canonical body for the same block header hash. ZIP-244 permits the attacker to mutate coinbase scriptSig authentication data...

Nimiq 安全漏洞

Nimiq is an open-source implementation of the Albatross protocol in Rust. Versions of Nimiq prior to 1.5.0 contained a security vulnerability. This vulnerability occurred when processing RequestBatchSet messages that contained the hash of the genesis block, causing Policy::macroblockbefore to cra...

CVE-2026-46543 nimiq-blockchain: Genesis batch set request

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.5.0, a remote peer can crash any full node by sending a RequestBatchSet message containing the genesis block's hash. The handler calls getepochchunks which iterates...

CVE-2026-34069

nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. In versions 1.2.2 and below, an unauthenticated p2p peer can cause the RequestMacroChain message handler task to panic. Sending a RequestMacroChain message where the...

CVE-2026-34069

nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. In versions 1.2.2 and below, an unauthenticated p2p peer can cause the RequestMacroChain message handler task to panic. Sending a RequestMacroChain message where the...

CVE-2026-34069

nimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. In versions 1.2.2 and below, an unauthenticated p2p peer can cause the RequestMacroChain message handler task to panic. Sending a RequestMacroChain message where the...

nimiq-consensus panics via RequestMacroChain micro-block locator

Impact An unauthenticated p2p peer can cause the RequestMacroChain message handler task to panic by sending a RequestMacroChain message where the first locator hash that is on the victim’s main chain is a micro block hash not a macro block hash. In RequestMacroChain::handle, the handler selects t...

GHSA-48M6-486P-9J8P nimiq-consensus panics via RequestMacroChain micro-block locator

Impact An unauthenticated p2p peer can cause the RequestMacroChain message handler task to panic by sending a RequestMacroChain message where the first locator hash that is on the victim’s main chain is a micro block hash not a macro block hash. In RequestMacroChain::handle, the handler selects t...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference affecting VerifyVoteExtension and vote verification functions. An attacker can cause intermittent validator panics and disrupt consensus operations by submitting a VoteExtension message with the blockhash field...

GHSA-M6WQ-66P2-C8PC Babylon Nil BlockHash in BLS vote extensions triggers panics in consensus handlers

Summary A vulnerability exists in Babylon’s BLS vote extension processing where a malicious active validator can submit a VoteExtension with the blockhash field omitted from the protobuf serialization. Because protobuf fields are optional, unmarshalling succeeds but leaves BlockHash as nil. Babyl...