CVE-2026-114118: vyper 0.3.4 through 0.5.0b1

Affected technology

vyper · 0.3.4 through 0.5.0b1
vyperlang

Description’s affected range: 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

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 4.0 assessment (base score 6.3/10) rates confidentiality impact as none; integrity and availability impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.