VULNERABILITY INTELLIGENCE

CVE-2026-46369

CVSS score7.5 HIGH
EPSS probability0.55%
CISA KEVNot currently listed
Published2026-08-26
Last modified2026-09-09
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Through 1.5.0, the validity store uses a strict lower-bound comparison that expires a stored transaction too early relative to Transaction::is_valid_at, allowing a remote attacker to replay the same signed transaction during a blocks_per_batch minus one block window and cause the sender and recipient balances to be updated twice. This issue is fixed in version 1.5.1.

Weakness classification

  • security-advisories@github.com: CWE-193

Primary references