Critical JWT Bypass in AWS Ops Wheel Grants Admin Access
A critical flaw, CVE-2026-6911, has been identified in AWS Ops Wheel, allowing unauthenticated attackers to forge JSON Web Tokens (JWTs). This vulnerability, attributed to missing signature verification, enables full administrative access to the application. The National Vulnerability Database reports a CVSS score of 9.8 (Critical).
Attackers can exploit this by sending a crafted JWT to the API Gateway endpoint. This bypass grants broad control, including the ability to read, modify, and delete all application data across tenants. Furthermore, it allows management of Cognito user accounts within the deployment’s User Pool. This is a complete compromise, giving an attacker the keys to the kingdom.
For organizations utilizing AWS Ops Wheel, immediate remediation is crucial. The National Vulnerability Database advises redeploying from the updated repository. Any forked or derivative codebases must also be patched to incorporate the necessary fixes. This isn’t a ‘wait and see’ situation; it’s a ‘fix it now’ imperative.
What This Means For You
- If your organization uses AWS Ops Wheel, you are critically exposed. This isn't just a data leak; it’s a full administrative takeover. Immediately check your deployment status, ensure you've redeployed from the updated repository, and verify that any custom or forked code is patched. Assume compromise until proven otherwise and audit for any unauthorized activity.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-6911: Unauthenticated JWT Bypass for Admin Access
title: CVE-2026-6911: Unauthenticated JWT Bypass for Admin Access
id: scw-2026-04-24-ai-1
status: experimental
level: critical
description: |
This rule detects attempts to access an administrative endpoint ('/api/v1/admin') via a POST request, which is indicative of an attempt to exploit CVE-2026-6911. The vulnerability allows unauthenticated attackers to forge JWT tokens and gain administrative access. A successful exploit would likely result in a 200 OK status code, as the forged token bypasses authentication and authorization checks.
author: SCW Feed Engine (AI-generated)
date: 2026-04-24
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-6911/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/api/v1/admin'
cs-method:
- 'POST'
sc-status:
- '200'
# This rule assumes a specific API endpoint that would be targeted by a forged JWT.
# The actual endpoint might vary, but the principle of targeting an admin function
# with a forged token is key.
# Additionally, a successful bypass would likely result in a 200 OK status.
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-6911 | Auth Bypass | AWS Ops Wheel missing JWT signature verification |
| CVE-2026-6911 | Privilege Escalation | Unauthenticated attackers forging JWT tokens for administrative access |
| CVE-2026-6911 | Information Disclosure | Ability to read all application data across tenants via crafted JWT |
| CVE-2026-6911 | Code Injection | Crafted JWT sent to API Gateway endpoint |
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 24, 2026 at 20:16 UTC |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
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