CVE-2026-57220 | THREATINT

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.

PUBLISHED Reserved 2026-06-24 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

>= 4.2.0, < 4.2.6

affected

References

github.com/...server/security/advisories/GHSA-f364-87q5-j35q exploit

github.com/...server/security/advisories/GHSA-f364-87q5-j35q

github.com/rabbitmq/rabbitmq-server/pull/16171

github.com/rabbitmq/rabbitmq-server/pull/16173

github.com/...ommit/595ec28fa1621b1f2c28124e4e0466a8ad963547

github.com/...ommit/773a49c4921e8be990262a2d609c35916825679e

github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6

cve.org (CVE-2026-57220)

nvd.nist.gov (CVE-2026-57220)

Download JSON