CVE-2026-57220
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.
- Affected products
- Rabbitmq
- Broadcom Rabbitmq Server
- < 4.2.6
- Fix
- Available
- CVSS 3.1
- 7.5 HIGH
- EPSS
- 1.0% (59th percentile)
- Weakness
- CWE-770
- NVD status
- Analyzed
- Published
- 2026-07-10
CVE-2026-57220 at NVD
No indexed exploits for CVE-2026-57220 yet
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No exploit for CVE-2026-57220 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.