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NVD description
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 .unwrap() on curve point decompression, which panics when a public key is constructed from 32 bytes that do not represent a valid point on the Ed25519 curve. Ed25519PublicKey construction only validates byte length, not curve membership, so invalid keys can reach the delinearization path and crash the hosting process. This issue has been patched in version 1.4.0.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2026-46542 Denial-of-Service Vulnerability in Nimiq Ed25519 Multisig Delinearization Prior to 1.4.0 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-46542
Post summary
The announcement references a denial‑of‑service vulnerability in Nimiq Ed25519 Multisig delinearization before v1.4.0, but provides no PoC, exploit, active attack evidence, or patch information.