CVE-2026-46542

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 denial-of-service vulnerability exists in the Ed25519 multisig delinearization code path. Ed25519PublicKey::delinearize in keys/src/multisig/mod.rs called...

GHSA-H9CC-W26M-J342 nimiq-keys: Denial of service in Ed25519 multisig delinearization via invalid curve points

Impact A denial-of-service vulnerability exists in the Ed25519 multisig delinearization code path. Ed25519PublicKey::delinearize in keys/src/multisig/mod.rs called .unwrap on curve point decompression, which panics when a public key is constructed from 32 bytes that do not represent a valid point...