CVE-2026-114114

Published: Ott 21, 2026 Last Modified: Ott 21, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,0
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM 5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: none

Description

AI Translation Available

Vyper 0.1.0b1 before 0.1.0b12, 0.1.0b14, and 0.4.1 through 0.5.0b1 mix character-based line offsets with Python's UTF-8 byte col_offset values in vyper/ast/parse.py, so multi-byte characters shift the source slices used to reconstruct later numeric literals. An attacker contributing source with non-ASCII identifiers that NFKC-normalize to ASCII, or an invisible byte-order mark, can silently substitute addresses, integers or other constants in compiled code.

176

Improper Handling of Unicode Encoding

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Unexpected State
Applicable Platforms
All platforms may be affected
View CWE Details
https://github.com/vyperlang/vyper/security/advisories/GHSA…
https://github.com/vyperlang/vyper/security/advisories/GHSA-r3c7-7xwm-6vfw
https://www.vulncheck.com/advisories/vyper-through-0.5-0b1-…
https://www.vulncheck.com/advisories/vyper-through-0.5-0b1-literal-value-substi…