CVE-2024-26149 LOW

CVE-2024-26149: Vyper _abi_decode Memory Overflow

Vendor Vyperlang
Product vyper
Weakness CWE-119
Published February 26, 2024
Last update August 22, 2024

CVSS base score

3.7/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. If an excessively large value is specified as the starting index for an array in `_abi_decode`, it can cause the read position to overflow. This results in the decoding of values outside the intended array bounds, potentially leading to exploitations in contracts that use arrays within `_abi_decode`. This vulnerability affects 0.3.10 and earlier versions.

Key dates

02Disclosure timeline

February 26, 2024 CVE published
August 22, 2024 Record updated

Related vulnerabilities

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