CVE-2026-57220
Last modified
CVE-2026-57220 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Broadcom | Rabbitmq Server | < 4.2.6 |
References
- https://github.com/rabbitmq/rabbitmq-server/pull/16171Issue Tracking, Patch
- https://github.com/rabbitmq/rabbitmq-server/pull/16173Issue Tracking, Patch
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35qExploit, Vendor Advisory
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35qExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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