CVE-2024-26149
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.
Does this matter?
Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- vyperlang/vyper
- Source
- security-advisories@github.com
References
- https://github.com/vyperlang/vyper/security/advisories/GHSA-9p8r-4xp4-gw5wExploit, Patch, Vendor Advisory
- https://github.com/vyperlang/vyper/security/advisories/GHSA-9p8r-4xp4-gw5wExploit, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.