Description officielle (NVD)

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, When no CA bundle is available, ssl_options/1 falls back to [{verify, verify_none}] with no warning. An attacker in a man-in-the-middle position can forge the JWKS response, which leads the broker to accept arbitrary JWTs. Preconditions include The OAuth2 plugin must be in use with no cacertfile configured and the OS CA bundle empty or unreadable (for example, in a minimal container), and the attacker must hold a network man-in-the-middle position.. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0.

Références

https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 — Release Notes
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-37wx-r6q9-6fhj — Vendor Advisory

En bref

Éditeur	broadcom
Produit	rabbitmq_server
Publiée le	23/09/2026
Modifiée le	19/10/2026
CVSS	9.2 (v4.0)
EPSS	0,20 % (centile 9)
CWE	CWE-295

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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.