Improper Validation of Specified Quantity in Input in ZenHive mpp allows an unauthenticated remote client to drain the fee-payer wallet in a single request by naming an arbitrarily high gas price.
CVSS 4.0HIGH 8.3·Network·No auth·No interaction·EPSS 0.00382·Published 2026-07-17·Fixed in 0.6.0CWE-1284
Improper Validation of Specified Quantity in Input in ZenHive mpp allows an unauthenticated remote client to inflate the fee-payer's gas cost per payment by a large multiplier, degrading the sponsor's operating margin.
CVSS 4.0HIGH 8.3·Network·No auth·No interaction·EPSS 0.00382·Published 2026-07-17·Fixed in 0.6.0CWE-1284
Improper Validation of Specified Quantity in Input in ZenHive mpp allows an unauthenticated remote client to drain the fee-payer wallet, resulting in denial of service for legitimate clients.
CVSS 4.0HIGH 8.2·Network·No auth·No interaction·EPSS 0.0046·Published 2026-07-17·Fixed in 0.6.0CWE-1284
Improper Validation of Specified Quantity in Input in ZenHive mpp allows a client holding an open payment channel to obtain paid resources without being charged.
CVSS 4.0HIGH 7.1·Network·Low privileges·No interaction·EPSS 0.00409·Published 2026-09-22·Fixed in 0.16.2CWE-1284
Authentication Bypass by Capture-replay in ZenHive mpp allows an unauthenticated remote client to obtain paid resources by resubmitting one settled on-chain transfer.
CVSS 4.0HIGH 8.7·Network·No auth·No interaction·EPSS 0.00595·Published 2026-08-19·Fixed in 0.6.3CWE-294
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 i…
CVSS 4.0HIGH 8.3·Network·No auth·No interaction·EPSS 0.00589·Published 2026-08-19·Fixed in 0.12.0CWE-770
Improper Validation of Specified Quantity in Input in ZenHive mpp allows an unauthenticated remote client to inflate the fee-payer's gas cost per sponsored payment by a large multiplier and to have the sponsor pay for pr…
CVSS 4.0HIGH 8.3·Network·No auth·No interaction·EPSS 0.00524·Published 2026-09-06·Fixed in 0.16.1CWE-1284
Improper Validation of Specified Quantity in Input in ZenHive mpp allows an unauthenticated remote client to inflate the fee-payer's gas cost per sponsored payment by a large multiplier and to have the sponsor pay for EI…
CVSS 4.0HIGH 8.3·Network·No auth·No interaction·EPSS 0.00524·Published 2026-09-06·Fixed in 0.16.1CWE-1284
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.
CVSS 4.0HIGH 8.2·Network·No auth·No interaction·EPSS 0.00595·Published 2026-08-19·Fixed in 0.6.4CWE-294
Authentication Bypass by Capture-replay in ZenHive mpp allows an attacker holding a captured subscription activation credential to charge the payer repeatedly.
CVSS 4.0HIGH 8.2·Network·No auth·No interaction·EPSS 0.00574·Published 2026-09-22·Fixed in 0.16.2CWE-294
Use of Cache Containing Sensitive Information in ZenHive mpp allows a shared HTTP cache to store a paid response and serve it to clients that never paid.
CVSS 4.0MEDIUM 6.3·Network·No auth·No interaction·EPSS 0.00524·Published 2026-09-16·Fixed in 0.16.2CWE-524
Improper Validation of Unsafe Equivalence in Input in ZenHive mpp allows an unauthenticated remote client to pass the Tempo duplicate-submission gate twice with one signed transaction.
CVSS 4.0MEDIUM 6.3·Network·No auth·No interaction·EPSS 0.00524·Published 2026-09-16·Fixed in 0.16.2CWE-1289
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.
CVSS 4.0MEDIUM 6.3·Network·No auth·No interaction·EPSS 0.00323·Published 2026-08-19·Fixed in 0.6.1CWE-367