| Package | Affected versions | Patched versions |
|---|---|---|
| iroha | = 1.0= 1.0.0 |
Hyperledger Iroha versions v1.0_beta and v1.0.0_beta-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 accept them as separate valid signatures.
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