# chai@6.2.2 security report (npm)

- Verdict: **Needs review** (risk level: medium)
- Scanned: 2026-10-06T14:14:43.000Z
- Files reviewed: 3
- Findings: 1 medium, 4 low severity findings
- Report: https://security.togoder.click/npm/chai
- Source: Togoder Security (https://security.togoder.click), AI source-code review

## Summary

Togoder Security scanned the npm package chai@6.2.2 on Oct 6, 2026. An AI review of 3 source files produced 1 medium, 4 low severity findings. The overall verdict is medium: the findings flag risky but common patterns (dynamic code, unsafe defaults, broad file or network access) rather than confirmed malware.

## Findings

### [medium] Global scope pollution

Finding ID: `NPS-B637A21CC8A3`

File: `register-assert.js:3`

The code assigns the imported 'assert' function to the global object (globalThis). This modifies the global namespace, which can lead to conflicts with other libraries or built-in modules, and may be used to override or shim global functions in unexpected ways. While not inherently malicious, it is a code smell and could be exploited if the imported module is compromised.

### [low] Global namespace pollution

Finding ID: `NPS-DA77F02ED7C9`

File: `register-expect.js:3`

The code assigns the 'expect' function to globalThis, making it globally available. While not inherently malicious, this modifies the global scope which could lead to conflicts or unexpected behavior in other modules. It does not exfiltrate data or execute suspicious code.

### [low] Top-level code execution

Finding ID: `NPS-387C2DAE3833`

File: `register-expect.js:3`

The file runs code at import time by assigning to globalThis. This is a common pattern for test frameworks to expose globals, but it is a minor red flag as it executes upon import without explicit user action.

### [low] Global namespace pollution

Finding ID: `NPS-30E52AA70DE5`

File: `register-should.js:3`

The code assigns a function to globalThis.should at import time. This modifies the global object, which can cause side effects that affect the entire runtime environment and could potentially be used to override or interfere with other libraries or application code.

### [low] Top-level code execution on import

Finding ID: `NPS-8C1A36C9D705`

File: `register-should.js:3`

The file executes code immediately upon import (calling should() and assigning to globalThis), which is a pattern that can be used for malicious purposes, though here it appears benign.

## Files reviewed

- `register-assert.js` (medium): The code pollutes the global scope by attaching an imported assert function to globalThis, which is a potential security concern but not clearly malicious.
- `register-expect.js` (medium): The code safely exposes the 'expect' function globally but shows no malicious patterns such as data exfiltration, credential harvesting, or dynamic code execution.
- `register-should.js` (medium): The code is a simple assertion library registration that pollutes the global namespace but shows no clear malicious behavior such as data exfiltration, credential harvesting, or remote code execution.

AI analysis is guidance, not a guarantee. Methodology: https://security.togoder.click/methodology