VNX-1126 – Declaration of Variable with Unnecessarily Wide Scope

Overview

VNX-1126 maps to CWE-1126: Declaration of Variable with Unnecessarily Wide Scope. Detects source patterns associated with CWE-1126 (Declaration of Variable with Unnecessarily Wide Scope). Each finding should be manually reviewed for exploitability in context.

Severity: Low | CWE: CWE-1126 | Languages: python

Why This Matters

This weakness class (Declaration of Variable with Unnecessarily Wide Scope) creates a concrete exploit surface: the rule searches for the concrete source-level patterns most commonly associated with CWE-1126 and surfaces them for review. Each finding should be evaluated in context — the rule catches the pattern, not the context.

What Gets Flagged

// FLAGGED: contains 'global ' pattern
global

Remediation

  1. Review each flagged line and determine whether the pattern represents a real instance of CWE-1126 or a false positive.
  2. Replace the flagged construct with a documented safe alternative appropriate to your language and framework.
  3. For confirmed false positives, add a # vulnetix-ignore: VNX-1126 comment on the line.
  4. Ensure equivalent test coverage exists to prevent regression.

References