CVE-2023-42441

PoC —

CVSS 3.1

5.3 medium

EPSS

<1%p36

Published

Sep 18, 2023 (Sep 18, 2023)

Modified

Jun 17, 2026

Description

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM). Starting in version 0.2.9 and prior to version 0.3.10, locks of the type `@nonreentrant("")` or `@nonreentrant('')` do not produce reentrancy checks at runtime. This issue is fixed in version 0.3.10. As a workaround, ensure the lock name is a non-empty string.

Vendors: vyperlang
Products: vyper
Weakness: CWE-833, CWE-667
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.4%)

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