Threats Tagged 'ghsa-vjfr-ffhr-5g8p'
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Threats Tagged 'ghsa-vjfr-ffhr-5g8p'
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A Time-of-check Time-of-use (TOCTOU) race condition exists in ZenHive mpp that allows an unauthenticated remote client to redeem a single confirmed on-chain payment multiple times for paid-resource accesses. The vulnerability arises because the 'hash' credential verification path uses a non-atomic check-then-mark sequence, enabling concurrent requests with the same payment hash to bypass replay protection. This affects versions from 0.2.0 up to but not including 0.6.1. The default configuration does not provide replay protection, and exploitation requires a deduplication store to be configured. Join the discussion | GCVE Database | 08/19/2026, 18:32:54 UTC Added: 09/10/2026, 22:04:39 UTC |
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