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OpenAdvisories
Low · 3.7 CVE-2023-32675 EUVD-2023-0273GHSA-vxmm-cwh2-q762PYSEC-2023-80

Nonpayable default functions are sometimes payable in vyper

Published May 19, 2023 · Updated Feb 12, 2025 · Assigned by GitHub_M

Description

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. In contracts with more than one regular nonpayable function, it is possible to send funds to the default function, even if the default function is marked `nonpayable`. This applies to contracts compiled with vyper versions prior to 0.3.8. This issue was fixed by the removal of the global `calldatasize` check in commit `02339dfda`. Users are advised to upgrade to version 0.3.8. Users unable to upgrade should avoid use of nonpayable default functions.

Affected products

VendorProductAffectedFixed
vyperlang vyper < 0.3.8 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI vyper < 0.3.8 0.3.8 GHSA-vxmm-cwh2-q762

References