CVE-2026-9133: CWE-489 Active debug code in AWS RabbitMQ AWS
Bulletin ID: 2026-034-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 05/20/2026 12:45 PM PDT Description: rabbitmq-aws is a RabbitMQ plugin that resolves AWS ARNs in broker configuration at startup, fetching secrets (e.g., TLS certificates, private keys, passwords) from AWS services (Secrets Manager, S3, ACM Private CA) and passing them in-memory to RabbitMQ. We identified CVE-2026-9133, an active debug code issue in the plugin's ARN resolver. 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. The debug code was inadvertently shipped in production builds with no mechanism to disable it. Impacted versions: >=0.1.0, <=0.2.0 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
AI Analysis
Technical Summary
The vulnerability CVE-2026-9133 affects the amazon-mq rabbitmq-aws plugin version 0.1.0. It is caused by active debug code in the ARN resolver that accepts a debug ARN scheme. This flaw allows remote authenticated users to read arbitrary files accessible to the RabbitMQ process, leading to potential unauthorized disclosure of sensitive information. AWS has released version 0.2.1 of the plugin to remediate this issue and advises rotating private certificate keys if TLS is used. The CVSS 3.1 score of 7.7 reflects a high confidentiality impact with no integrity or availability impact. The affected product is a cloud service, and AWS manages remediation for this service.
Potential Impact
The vulnerability allows remote authenticated users to read arbitrary files accessible to the RabbitMQ process, resulting in unauthorized disclosure of sensitive information. There is no impact on data integrity or system availability. The CVSS score of 7.7 confirms a high confidentiality impact.
Mitigation Recommendations
AWS recommends upgrading the amazon-mq rabbitmq-aws plugin to version 0.2.1 to remediate this vulnerability. Additionally, if TLS is used, private certificate keys should be rotated. Since this is a cloud service, AWS manages remediation server-side; users should follow the vendor advisory at https://aws.amazon.com/security/security-bulletins/2026-034-aws/ for the latest guidance.
CVE-2026-9133: CWE-489 Active debug code in AWS RabbitMQ AWS
Description
Bulletin ID: 2026-034-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 05/20/2026 12:45 PM PDT Description: rabbitmq-aws is a RabbitMQ plugin that resolves AWS ARNs in broker configuration at startup, fetching secrets (e.g., TLS certificates, private keys, passwords) from AWS services (Secrets Manager, S3, ACM Private CA) and passing them in-memory to RabbitMQ. We identified CVE-2026-9133, an active debug code issue in the plugin's ARN resolver. 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. The debug code was inadvertently shipped in production builds with no mechanism to disable it. Impacted versions: >=0.1.0, <=0.2.0 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
CVSS v3.1
Score 7.7high
Affected software
AWS
RabbitMQ AWS
pkg:github/amazon-mq/rabbitmq-awsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-9133 affects the amazon-mq rabbitmq-aws plugin version 0.1.0. It is caused by active debug code in the ARN resolver that accepts a debug ARN scheme. This flaw allows remote authenticated users to read arbitrary files accessible to the RabbitMQ process, leading to potential unauthorized disclosure of sensitive information. AWS has released version 0.2.1 of the plugin to remediate this issue and advises rotating private certificate keys if TLS is used. The CVSS 3.1 score of 7.7 reflects a high confidentiality impact with no integrity or availability impact. The affected product is a cloud service, and AWS manages remediation for this service.
Potential Impact
The vulnerability allows remote authenticated users to read arbitrary files accessible to the RabbitMQ process, resulting in unauthorized disclosure of sensitive information. There is no impact on data integrity or system availability. The CVSS score of 7.7 confirms a high confidentiality impact.
Mitigation Recommendations
AWS recommends upgrading the amazon-mq rabbitmq-aws plugin to version 0.2.1 to remediate this vulnerability. Additionally, if TLS is used, private certificate keys should be rotated. Since this is a cloud service, AWS manages remediation server-side; users should follow the vendor advisory at https://aws.amazon.com/security/security-bulletins/2026-034-aws/ for the latest guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- AMZN
- Date Reserved
- 2026-05-20T18:21:53.557Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://aws.amazon.com/security/security-bulletins/2026-034-aws/","vendor":"AWS"}]
Threat ID: 6a0e173eba1db47362a37eb0
Added to database: 05/20/2026, 20:19:10 UTC
Last enriched: 06/11/2026, 01:11:24 UTC
Last updated: 09/12/2026, 12:41:53 UTC
Views: 196
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