CVE-2026-114117
HIGH
8,2
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM
5,9
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: none
Description
AI Translation Available
Vyper 0.3.8 through 0.5.0b1 contains an optimizer miscompilation in which (msg.value | K) or (len(msg.data) | K), where K is any nonzero integer literal, is compiled to the constant 1 when used as a ternary expression branch under -O gas (the default) or -O codesize. Affected contracts use the wrong value in storage writes, arithmetic, indexes, return values, or events without warning or revert, which can record deposits incorrectly and lock funds.
682
Incorrect Calculation
DraftCommon Consequences
Security Scopes Affected:
Availability
Integrity
Confidentiality
Access Control
Potential Impacts:
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Other)
Execute Unauthorized Code Or Commands
Gain Privileges Or Assume Identity
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
https://github.com/vyperlang/vyper/security/advisories/GHSA-6j9c-gvcw-74fj
https://www.vulncheck.com/advisories/vyper-0.3.8-through-0.5-0b1-optimizer-misc…