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::isvalidat, allowing a remote attacker to replay the same signed transaction during a blocksperbatch minus one block window and cause the sender and recipient balances to be updated twice. This issue is fixed in version 1.5.1.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46369.json",
"cwe_ids": [
"CWE-193",
"CWE-294"
],
"cna_assigner": "GitHub_M"
}