CVE-2026-104426: Inefficient Algorithmic Complexity

Zebra before 6.1.0 contains an inefficient algorithmic complexity vulnerability in remainingtransactionvalue that clones the entire block-level spent-UTXO map per transaction during contextual verification. Attackers can mine or seed the mempool with roughly 26,000 minimal single-input transactio...

CVE-2018-3756

Hyperledger Iroha versions v1.0beta and v1.0.0beta-1 are vulnerable to transaction and block signature verification bypass in the transaction and block validator allowing a single node to sign a transaction and/or block multiple times, each with a random nonce, and have other validating nodes...