mpp vulnerabilities (Hex)
13 vulnerabilities.
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mppHex mpp Tempo subscription key authorization is not bound to the issuing challenge, allowing a captured activation credential to be replayed 8.2 High -
mppHex Session voucher adding no new funds is accepted without a charge in mpp, serving paid resources for free 7.1 High -
mppHex mpp Tempo keys its pre-broadcast dedup reserve on the caller-supplied transaction encoding, so a re-encoded signed transaction reserves a second slot 6.3 Medium -
mppHex mpp writes Payment-Receipt and Cache-Control before the wrapped application runs, letting a consumer's own Cache-Control expose paid responses to shared caches 6.3 Medium -
mppHex Unbounded EIP-7702 authorization list in mpp Tempo fee-payer sponsorship inflates gas cost and sponsors account delegation 8.3 High -
mppHex Unbounded key authorization in mpp Tempo fee-payer sponsorship inflates gas cost and sponsors access-key provisioning 8.3 High -
mppHex On-chain transfer proof is not single-use in mpp EVM payment method, enabling cross-challenge replay 8.7 High -
mppHex Tempo fee sponsorship in mpp bounds each transaction but not aggregate exposure, allowing concurrent sponsor-wallet drain 8.3 High -
mppHex Static memo configuration in mpp Tempo disables per-challenge attribution binding, enabling third-party replay 8.2 High -
mppHex Non-atomic hash-credential dedup in mpp Tempo allows replay of a confirmed payment under a concurrent race 6.3 Medium -
mppHex Missing gas_limit validation in mpp Tempo fee-payer enables wallet drain 8.2 High -
mppHex Unbounded access list in mpp Tempo fee-payer inflates gas cost per payment 8.3 High -
mppHex Unbounded max_fee_per_gas in mpp Tempo fee-payer enables single-request wallet drain 8.3 High