VDB
KO
HIGH 7.5

PYSEC-2023-191

Details

Vyper is a Pythonic Smart Contract Language for the EVM. The `_abi_decode()` function does not validate input when it is nested in an expression. Uses of `_abi_decode()` can be constructed which allow for bounds checking to be bypassed resulting in incorrect results. This issue has not yet been fixed, but a fix is expected in release `0.3.10`. Users are advised to reference pull request #3626.

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Affected packages

PyPI / vyper
Introduced in: 0.3.4 Fixed in: 0.3.10
Fix pip install --upgrade 'vyper>=0.3.10'

References