CVE-2026-114116 (GCVE-0-2026-114116)

Vulnerability from cvelistv5 – Published: 2026-10-21 00:37 – Updated: 2026-10-21 00:37
VLAI
Title
Vyper through 0.5.0b1 Literal Value Manipulation via Line Separators
Summary
Vyper 0.1.0b1 before 0.1.0b17 and 0.4.1 through 0.5.0b1 builds its source-line table with str.splitlines(), which treats characters like form feed and U+2028 as line breaks the Python parser ignores, so numeric literals are classified and validated from shifted source text. An attacker contributing source code can hide these characters in comments, strings or indentation to silently change address, integer or decimal constants.
Severity
6 (Medium)
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
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
CWE
  • CWE-436 - Interpretation Conflict
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6798 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
vyperlang vyper Affected: 0.1.0b1 , < 0.1.0b17 (python)
Unaffected: 0.1.0b17 (python)
guessed Create a notification for this product.
vyperlang vyper Affected: 0.4.1 , ≤ 0.5.0b1 (python)
guessed Create a notification for this product.
Date Public
2026-10-06 00:00
Credits
DELENE-TCHIO-ROMUALD
Show details on NVD website
To clipboard 

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    "dateReserved": "2026-10-20T21:48:58.503Z",
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}



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