UBUNTU-CVE-2026-57217
RabbitMQ versions prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6 contain a vulnerability in topic authorization. During metadata-store failures, topic-permission lookup errors from the Khepri component can become undefined, which the internal backend interprets as permission granted. This allows restricted topic writes and binds that should otherwise be denied. The issue is fixed in the specified versions.
AI Analysis
Technical Summary
RabbitMQ, a messaging and streaming broker, has a vulnerability affecting topic authorization in versions before 3.13.15, 4.0.21, 4.1.11, and 4.2.6. When metadata-store failures occur, topic-permission lookup errors from the Khepri subsystem can collapse to an undefined state. The internal backend treats this undefined state as an allow, permitting restricted topic writes and binds that bypass intended access controls. This flaw is resolved in the fixed versions mentioned.
Potential Impact
The vulnerability allows unauthorized topic writes and binds during metadata-store failures, potentially enabling privilege escalation or unauthorized message routing within RabbitMQ. This could impact the integrity and confidentiality of messaging operations by allowing restricted actions that should be denied under normal authorization checks.
Mitigation Recommendations
A fix is available in RabbitMQ versions 3.13.15, 4.0.21, 4.1.11, and 4.2.6. Users should upgrade to these or later versions to remediate the vulnerability. No additional vendor advisory content contradicts this guidance.
UBUNTU-CVE-2026-57217
Description
RabbitMQ versions prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6 contain a vulnerability in topic authorization. During metadata-store failures, topic-permission lookup errors from the Khepri component can become undefined, which the internal backend interprets as permission granted. This allows restricted topic writes and binds that should otherwise be denied. The issue is fixed in the specified versions.
CVSS v4.0
Affected software
pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=esm-infra/xenialpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=focalpkg:deb/ubuntu/[email protected]?arch=source&distro=jammypkg:deb/ubuntu/[email protected]?arch=source&distro=noblepkg:deb/ubuntu/[email protected]?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
RabbitMQ, a messaging and streaming broker, has a vulnerability affecting topic authorization in versions before 3.13.15, 4.0.21, 4.1.11, and 4.2.6. When metadata-store failures occur, topic-permission lookup errors from the Khepri subsystem can collapse to an undefined state. The internal backend treats this undefined state as an allow, permitting restricted topic writes and binds that bypass intended access controls. This flaw is resolved in the fixed versions mentioned.
Potential Impact
The vulnerability allows unauthorized topic writes and binds during metadata-store failures, potentially enabling privilege escalation or unauthorized message routing within RabbitMQ. This could impact the integrity and confidentiality of messaging operations by allowing restricted actions that should be denied under normal authorization checks.
Mitigation Recommendations
A fix is available in RabbitMQ versions 3.13.15, 4.0.21, 4.1.11, and 4.2.6. Users should upgrade to these or later versions to remediate the vulnerability. No additional vendor advisory content contradicts this guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-57217
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:Pro:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 4.0
Threat ID: 6a58b46968715ace43d797d2
Added to database: 07/16/2026, 10:37:29 UTC
Last enriched: 07/16/2026, 11:41:10 UTC
Last updated: 07/31/2026, 19:24:47 UTC
Views: 18
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