CVE-2026-114114

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Source
https://cve.org/CVERecord?id=CVE-2026-114114
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114114.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-114114
Aliases
  • GHSA-r3c7-7xwm-6vfw
Published
2026-10-21T00:37:12Z
Modified
2026-10-21T10:45:46Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Vyper through 0.5.0b1 Literal Value Substitution via Multi-byte Characters
Details

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.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-176"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114114.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "0.1.0b1"
                        },
                        {
                            "fixed":  "0.1.0b12"
                        },
                        {
                            "introduced":  "0.1.0b14"
                        },
                        {
                            "fixed":  "0.1.0b15"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StandardRange"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/vyperlang/vyper

Affected ranges

Type
GIT
Repo
https://github.com/vyperlang/vyper
Events
Introduced
8a93dd27de503b0a3ace36d961a10c9ea4adee8b
Last Affected
577d2534356903076bb79b5b15ebd4d772994693
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0.4.1"
                },
                {
                    "last_affected":  "0.5.0b1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        }
    ]
}

Affected versions

v0.*
v0.4.1
v0.4.2
v0.4.2rc1
v0.4.3
v0.4.3rc1
v0.5.0a1
v0.5.0a2
v0.5.0a3
v0.5.0b1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114114.json"