CVE-2024-32647

vyper performs double eval of raw_args in create_from_blueprint

Published Apr 25, 2024 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-0184 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.\n
Github GHSA Github GHSA GHSA-3whq-64q2-qfj6 vyper performs double eval of raw_args in create_from_blueprint
History
Type Values Removed Values Added
Weaknesses NVD-CWE-Other
CPEs cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:*
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 2, 2024, 2:13 AM
Reserved
Apr 16, 2024, 2:15 PM
Status
Analyzed
Published
Apr 25, 2024, 6:15 PM
Modified
Jun 17, 2026, 7:30 AM