High severity7.5NVD Advisory· Published Apr 4, 2022· Updated Jun 17, 2026
CVE-2022-24787
CVE-2022-24787
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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Affected products
2Patches
Vulnerability mechanics
References
2- github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508nvdPatchThird Party Advisory
- github.com/vyperlang/vyper/security/advisories/GHSA-7vrm-3jc8-5wwmnvdPatchThird Party Advisory
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