VNX-346 – Origin Validation Error

Overview

VNX-346 maps to CWE-346: Origin Validation Error. Detects source patterns associated with CWE-346 (Origin Validation Error). Each finding should be manually reviewed for exploitability in context.

Severity: Medium | CWE: CWE-346 | Languages: node, python

Why This Matters

This weakness class (Origin Validation Error) creates a concrete exploit surface: the rule searches for the concrete source-level patterns most commonly associated with CWE-346 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 'cors({' pattern
cors({

// FLAGGED: contains 'CORS_ORIGIN_ALLOW_ALL = True' pattern
CORS_ORIGIN_ALLOW_ALL = True

Remediation

  1. Review each flagged line and determine whether the pattern represents a real instance of CWE-346 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-346 comment on the line.
  4. Ensure equivalent test coverage exists to prevent regression.

References