VNX-349 – Acceptance of Extraneous Untrusted Data With Trusted Data

Overview

VNX-349 maps to CWE-349: Acceptance of Extraneous Untrusted Data With Trusted Data. Detects source patterns associated with CWE-349 (Acceptance of Extraneous Untrusted Data With Trusted Data). Each finding should be manually reviewed for exploitability in context.

Severity: Medium | CWE: CWE-349 | Languages: java, node, python

Why This Matters

This weakness class (Acceptance of Extraneous Untrusted Data With Trusted Data) creates a concrete exploit surface: the rule searches for the concrete source-level patterns most commonly associated with CWE-349 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 'trusted_data' pattern
trusted_data

Remediation

  1. Review each flagged line and determine whether the pattern represents a real instance of CWE-349 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-349 comment on the line.
  4. Ensure equivalent test coverage exists to prevent regression.

References