VYPR

Machine Payments Protocol

by ZenHive

Source repositories

CVEs (4)

  • CVE-2026-73541HigAug 19, 2026
    risk 0.46cvss 8.2epss 0.01

    Allocation of Resources Without Limits or Throttling in ZenHive mpp allows an unauthenticated remote client to drain the fee-payer wallet through concurrent sponsored payments, denying service to legitimate payers once it is empty. MPP.Methods.Tempo.FeePayerPolicy enforces its…

  • CVE-2026-73136HigAug 19, 2026
    risk 0.42cvss 7.5epss 0.01

    Authentication Bypass by Capture-replay in ZenHive mpp allows an unauthenticated third party to obtain paid resources by replaying a transfer settled by an unrelated payer. MPP.Methods.Tempo normally binds a settled TIP-20 TransferWithMemo to the specific challenge under…

  • CVE-2026-67581HigAug 19, 2026
    risk 0.42cvss 7.5epss 0.01

    Authentication Bypass by Capture-replay in ZenHive mpp allows an unauthenticated remote client to obtain paid resources by resubmitting one settled on-chain transfer. MPP.Methods.EVM.verify/2 accepts a transaction-hash credential and matches a transfer purely on token, to and…

  • CVE-2026-73829LowAug 19, 2026
    risk 0.17cvss 3.7epss 0.00

    Time-of-check Time-of-use (TOCTOU) Race Condition in ZenHive mpp allows an unauthenticated remote client to redeem one confirmed on-chain payment for multiple paid-resource accesses. The type="hash" credential path in MPP.Methods.Tempo.verify/2 guards against replay with a…