CVE-2026-46540

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, when LightBlockchain::rebranch adopts a fork chain whose tip is a macro block checkpoint or election, it only updates self.head but fails to update self.macrohea...

CVE-2026-46540

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, when LightBlockchain::rebranch adopts a fork chain whose tip is a macro block checkpoint or election, it only updates self.head but fails to update self.macrohea...

CVE-2026-46540

Nimiq light-blockchain (Rust, Albatross) had a bug in LightBlockchain::rebranch() before v1.4.0: when forking to a macro-block tip (checkpoint or election), it updated only head and did not refresh macro_head, election_head, current_validators, or store the election header. This mismatch with the...

EUVD-2026-35881

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, when LightBlockchain::rebranch adopts a fork chain whose tip is a macro block checkpoint or election, it only updates self.head but fails to update self.macrohea...

CVE-2026-46540 Nimiq light-blockchain: Light blockchain rebranch issue

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, when LightBlockchain::rebranch adopts a fork chain whose tip is a macro block checkpoint or election, it only updates self.head but fails to update self.macrohea...

CVE-2026-46540 Nimiq light-blockchain: Light blockchain rebranch issue

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, when LightBlockchain::rebranch adopts a fork chain whose tip is a macro block checkpoint or election, it only updates self.head but fails to update self.macrohea...

CVE-2026-46539 nimiq-primitives: BlockInclusionProof interlink issue when hops are empty

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, a logic flaw in BlockInclusionProof::isblockproven causes the function to return true without performing any cryptographic verification when getinterlinkhops...

PT-2026-48331

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.4.0, when LightBlockchain::rebranch adopts a fork chain whose tip is a macro block checkpoint or election, it only updates self.head but fails to update self.macro...

CVE-2026-34065

nimiq-primitives contains primitives e.g., block, account, transaction to be used in Nimiq's Rust implementation. Prior to version 1.3.0, an untrusted p2p peer can cause a node to panic by announcing an election macro block whose validators set contains an invalid compressed BLS voting key. Hashi...

GHSA-799F-29JM-GR6C nimiq-primitives: BlockInclusionProof interlink issue when hops are empty

Impact A logic flaw in BlockInclusionProof::isblockproven causes the function to return true without performing any cryptographic verification when getinterlinkhops yields an empty hop list. This occurs when the target block is at the election block position immediately preceding the election...

PT-2026-42602

Impact A logic flaw in BlockInclusionProof::is block proven causes the function to return true without performing any cryptographic verification when get interlink hops yields an empty hop list. This occurs when the target block is at the election block position immediately preceding the election...

PT-2026-42669

Name of the Vulnerable Software and Affected Versions Nimiq versions prior to 1.4.0 Description A logic flaw in the is block proven function within BlockInclusionProof allows the function to return true without performing cryptographic verification when get interlink hops returns an empty hop lis...

Kazuar: Anatomy of a nation-state botnet

In this article 1. Delivery 2. Module types 3. Botnet operations 4. Who is Secret Blizzard? 5. Mitigation and protection guidance 6. Microsoft Defender detections Kazuar, a sophisticated malware family attributed to the Russian state actor Secret Blizzard, has been under constant development for...

CVE-2026-34065

nimiq-primitives contains primitives e.g., block, account, transaction to be used in Nimiq's Rust implementation. Prior to version 1.3.0, an untrusted p2p peer can cause a node to panic by announcing an election macro block whose validators set contains an invalid compressed BLS voting key. Hashi...

CVE-2026-34065 nimiq-primitives: Node crash due to missing interlink validation in election macro block proposals

nimiq-primitives contains primitives e.g., block, account, transaction to be used in Nimiq's Rust implementation. Prior to version 1.3.0, an untrusted p2p peer can cause a node to panic by announcing an election macro block whose validators set contains an invalid compressed BLS voting key. Hashi...

CVE-2026-34065

CVE-2026-34065 affects nimiq-primitives in Nimiq’s Rust implementation. Before version 1.3.0, an untrusted p2p peer could cause a node to panic by announcing an election macro block whose validators set includes an invalid compressed BLS voting key. Hashing the election macro header hashes the va...

CVE-2026-34065

nimiq-primitives contains primitives e.g., block, account, transaction to be used in Nimiq's Rust implementation. Prior to version 1.3.0, an untrusted p2p peer can cause a node to panic by announcing an election macro block whose validators set contains an invalid compressed BLS voting key. Hashi...

CVE-2026-34065 nimiq-primitives: Node crash due to missing interlink validation in election macro block proposals

nimiq-primitives contains primitives e.g., block, account, transaction to be used in Nimiq's Rust implementation. Prior to version 1.3.0, an untrusted p2p peer can cause a node to panic by announcing an election macro block whose validators set contains an invalid compressed BLS voting key. Hashi...

EUVD-2026-25062

nimiq-primitives: Node crash due to missing interlink validation in election macro block proposals...

GHSA-7C4J-2M43-2MGH nimiq-primitives: Node crash due to missing interlink validation in election macro block proposals

Impact An untrusted p2p peer can cause a node to panic by announcing an election macro block whose validators set contains an invalid compressed BLS voting key. Hashing an election macro header hashes validators and reaches Validators::votingkeys, which calls validator.votingkey.uncompress.unwrap...