CVE-2023-42460

Published: Sep 27, 2023Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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.

Affected (1)

Products: Vyperlang: Vyper

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Vyperlang Vyper	From 0.3.4 to 0.3.10

Related CWEs

Incorrect Calculation

The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.

References (4)

https://github.com/vyperlang/vyper/pull/3626

Source: security-advisories@github.com

Patch

https://github.com/vyperlang/vyper/security/advisories/GHSA-cx2q-hfxr-rj97

Source: security-advisories@github.com

ExploitPatchThird Party Advisory

https://github.com/vyperlang/vyper/pull/3626

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://github.com/vyperlang/vyper/security/advisories/GHSA-cx2q-hfxr-rj97

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitPatchThird Party Advisory

Timeline

No history available yet.