CVE-2026-46539

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...

CVE-2026-46539

CVE-2026-46539 affects Nimiq (Rust, Albatross-based PoS). Prior to 1.4.0, a logic flaw in BlockInclusionProof::is_block_proven returns true without cryptographic verification when get_interlink_hops yields an empty hop list, specifically for the target block at the election block position immedia...

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...