Which products and versions are affected by CVE-2026-9133?

Affected: RabbitMQ AWS versions >= 0.1.0. The full list is in the CVE brief.

Is CVE-2026-9133 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2026-9133 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2026-9133?

No public exploit code is known.

Is there a fix for CVE-2026-9133?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2026-9133 be patched?

Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

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Vulnerability Intelligence

CVE-2026-9133

High

Arbitrary file read in rabbitmq-aws plugin

Published May 20, 2026 · Updated Aug 12, 2026 · Also known as GHSA-8554-wg4r-7hxm

Key Facts

Patch in the next maintenance window

CVE-2026-9133 is a high-severity vulnerability (CVSS 8.3 v4) affecting RabbitMQ AWS.
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 1.1% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

CVSS v4

8.3

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS (30-day exploit likelihood)

1.1%

Higher than 64.6% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2026-9133 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

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.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
RabbitMQ AWS	>= 0.1.0	n/a

Timeline

Publicly disclosed
May 20, 2026
Last updated
Aug 12, 2026

Weakness Type

CWE-489 Active Debug Code

References

FAQ

Common Questions.

Active debug code exists in the ARN resolver of amazon-mq rabbitmq-aws before version 0.2.1.
Affected: RabbitMQ AWS versions >= 0.1.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

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