# JSON Web Token (JWT) Weaknesses

> Detects insecure JWT implementations, such as accepting 'none' algorithms or using hardcoded secrets.

- Skill: `zakirkun/json-web-token-jwt-weaknesses` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add zakirkun/json-web-token-jwt-weaknesses`
- Raw SKILL.md: https://api.skillmd.com/api/skills/zakirkun/json-web-token-jwt-weaknesses/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: zakirkun (https://skillmd.com/u/zakirkun)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/zakirkun/json-web-token-jwt-weaknesses

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# JSON Web Token (JWT) Weaknesses

## Overview
Detects insecure JWT implementations, such as accepting 'none' algorithms or using hardcoded secrets.

## Remediation
Always enforce cryptographic signatures (e.g., HS256, RS256). Do not allow the 'none' algorithm. Always load secrets from environment variables.