CVE-2026-114663 (GCVE-0-2026-114663)

Vulnerability from cvelistv5 – Published: 2026-10-22 01:43 – Updated: 2026-10-22 01:43
VLAI
Title
Vyper 0.4.0b1 through 0.5.0b1 Name Shadowing of Imported Constants and Default Arguments
Summary
Vyper 0.4.0b1 through 0.5.0b1 miscompiles unfoldable constants and omitted default arguments from imported modules, because parse_Name resolves their names in the using function's scope rather than at declaration. When a contract's parameter, local, or loop variable shares such a name, attacker-influenced input can replace the intended value, including out-of-range values for narrow types such as uint8, corrupting validation or accounting logic.
Severity
8.6 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-706 - Use of Incorrectly-Resolved Name or Reference
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6697 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
vyperlang vyper Affected: 0.4.0b1 , ≤ 0.5.0b1 (python)
    cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-07 00:00
Show details on NVD website
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