CVE-2026-114118

MediumCVSS 4.8/10Last modified Oct 22, 2026

Description

Vyper 0.3.4 through 0.5.0b1 computes the remaining blueprint size in create_from_blueprint by uint256 subtraction without first checking that code_offset is below the blueprint's code size, so a huge offset wraps to a small positive value. An attacker controlling code_offset can make a factory deploy contracts with no runtime code, potentially trapping ETH and tokens.

Metrics

CVSS 3.1 4.8/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Weakness enumeration

CWE-681

Affected software

No affected versions have been published.

Timeline

Published: Oct 21, 2026
Last modified: Oct 22, 2026
NVD status: Deferred

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