CVE-2024-32648: Vyperlang Vyper

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. Prior to version 0.3.0, default functions don't respect nonreentrancy keys and the lock isn't emitted. No vulnerable production contracts were found. Additionally, using a lock on a `default` function is a very sparsely used pattern. As such, the impact is low. Version 0.3.0 contains a patch for the issue.

Affected products

• Vyperlang Vyper: before 0.3.0 (fixed in 0.3.0)

Published 2024-04-25. Last modified 2026-06-17.