CVE-2026-46369
Nimiq is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Through 1.5.0, the validity
CVSS
7.5
High
EPSS
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KEV
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Exploit Today
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0-100
Published: Aug 26, 2026 · Last modified: Aug 27, 2026 · CWE-193 · CWE-294
Not enough EPSS history yet.
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.