Security Advisory

CVE-2022-24787

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2022-04-04 17:35:10

Last updated 2025-04-23 18:41:56

Assigner GitHub_M

State PUBLISHED

Description

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. In version 0.3.1 and prior, bytestrings can have dirty bytes in them, resulting in the word-for-word comparisons giving incorrect results. Even without dirty nonzero bytes, two bytestrings can compare to equal if one ends with `"x00"` because there is no comparison of the length. A patch is available and expected to be part of the 0.3.2 release. There are currently no known workarounds.

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