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CVE-2026-114116

CVE-2026-114116 · Vyper through 0.5.0b1 Literal Value Manipulation via Line Separators

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.0 · Medium · EPSS 0.2% · Fix available

Published
Updated

Affected products and versions

  • vyper

    Versions
    • ≥ 0.1.0b1, < 0.1.0b17: Affected (python)
    • 0.1.0b17: Not affected (python)

    Update to 0.1.0b17

  • vyper

    Versions
    • ≥ 0.4.1, ≤ 0.5.0b1: Affected (python)

    No fix published

Original sources

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