CVE-2023-42460

MEDIUM

Vyper <0.3.10 - Code Injection

Title source: llm

Description

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.

Scores

CVSS v3 5.3
EPSS 0.0005
EPSS Percentile 14.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Classification

CWE
CWE-682
Status published

Affected Products (2)

vyperlang/vyper < 0.3.10
pypi/vyper < 0.3.10PyPI

Timeline

Published Sep 27, 2023
Tracked Since Feb 18, 2026