CVE-2024-32647

MEDIUM

Vyper <0.3.10 - Code Injection

Title source: llm
STIX 2.1

Description

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `create_from_blueprint` builtin can result in a double eval vulnerability when `raw_args=True` and the `args` argument has side-effects. It can be seen that the `_build_create_IR` function of the `create_from_blueprint` builtin doesn't cache the mentioned `args` argument to the stack. As such, it can be evaluated multiple times (instead of retrieving the value from the stack). No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions exist.

Scores

CVSS v3 5.3
EPSS 0.0050
EPSS Percentile 66.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-95
Status published
Products (2)
pypi/vyper 0 - 0.4.0PyPI
vyperlang/vyper < 0.4.0
Published Apr 25, 2024
Tracked Since Feb 18, 2026