CVE-2026-46545: Nimiq Core-RS-Albatross

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

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, unauthenticated denial-of-service vulnerability in MerkleRadixTrie::put_chunk allows any state-sync peer to crash any node performing state synchronization (freshly joining nodes and recovering nodes). This issue has been patched in version 1.5.0.

Affected products

• Nimiq Core-RS-Albatross: before 1.5.0 (fixed in 1.5.0)

Published 2026-06-10. Last modified 2026-07-23.