CVE-2023-32059
High
Description
Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, internal calls with default arguments are compiled incorrectly. Depending on the number of arguments provided in the call, the defaults are added not right-to-left, but left-to-right. If the types are incompatible, typechecking is bypassed. The ability to pass kwargs to internal functions is an undocumented feature that is not well known about. The issue is patched in version 0.3.8.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Vyper
PublishedMay 11, 2023
First seenMay 11, 2023
Weakness typeCWE-683CWE-683
How to fix
Update
- vyperlang vyper0.3.8 or later
- vyper0.3.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vyperlang vyper | v < 0.3.8 | 0.3.8 |
| vyperPyPI | v < 0.3.8 | 0.3.8 |
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