Description officielle (NVD)

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the stream protocol stored the FrameMax value negotiated during the Tune handshake but did not compare it with an inbound frame's declared length before buffering the frame. With the stream plugin enabled, a remote client could therefore cause excessive memory pressure and denial of service by declaring an oversized frame. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

Références

https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 , Release Notes, Patch
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-c8c4-gvv4-8j3q , Vendor Advisory

En bref

Éditeur	broadcom
Produit	rabbitmq_server
Publiée le	25/09/2026
Modifiée le	20/10/2026
CVSS	6.3 (v4.0)
EPSS	0,34 % (centile 27)
CWE	CWE-770

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/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 : probabilité estimée d'exploitation dans les 30 prochains jours.