CVE-2026-46369
High · 7.5CVSS
7.5
EPSS
0.5%
Published
Aug 26, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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