CVE-2026-67411

highPriorität · verfolgen · 28OT-Risiko · erhöhtEPSS 0.003 · 25. PerzentilUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.32% (25th) EPSS

CVSS 7.1 · high

Is it mine?

10 products

Prüfe deine Angriffsfläche

Who says so?

2 sources

osv · nvd

EPSS · bewertet 2026-10-27

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3, native MQTT and MQTT over WebSocket behind a trusted PROXY Protocol frontend could lose the proxy-derived client address before the MQTT authentication path checked loopback_users, causing the frontend-to-broker address to be treated as loopback. An attacker who can reach the trusted frontend and has valid credentials for a loopback-restricted account can therefore bypass the source-address restriction; the issue does not bypass password authentication. This issue is fixed in versions 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.1

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–high · 2.3–7.1

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 4.2

v4.06mediumCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/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:Xsecondary · security-advisories@github.com

v4.02.3lowCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-863USprimär

betroffene Produkte (10)

Betroffene Produkte und Versionsbereiche.

broadcom rabbitmq server3.13.0 → 3.13.18nvdUScpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*
broadcom rabbitmq server4.0.0 → 4.0.23nvdUScpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*
broadcom rabbitmq server4.1.0 → 4.1.14nvdUScpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*
broadcom rabbitmq server4.2.0 → 4.2.9nvdUScpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*
broadcom rabbitmq server4.3.0 → 4.3.3nvdUScpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*
Bitnami rabbitmq3.13.0 → 3.13.18osvUSpkg:bitnami/rabbitmq
Bitnami rabbitmq4.0.0 → 4.0.23osvUSpkg:bitnami/rabbitmq
Bitnami rabbitmq4.1.0 → 4.1.14osvUSpkg:bitnami/rabbitmq
Bitnami rabbitmq4.2.0 → 4.2.9osvUSpkg:bitnami/rabbitmq
Bitnami rabbitmq4.3.0 → 4.3.3osvUSpkg:bitnami/rabbitmq

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

BIT-rabbitmq-2026-67411RabbitMQ: Web MQTT with PROXY Protocol enabled: a loopback-only user permission bypass2026-10-01vendor · osvUS
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3, native MQTT and MQTT over WebSocket behind a trusted PROXY Protocol frontend could lose the proxy-derived client address before the MQTT authentication path checked loopback_users, causing the frontend-to-broker address to be treated as loopback. An attacker who can reach the trusted frontend and has valid credentials for a loopback-restricted account can therefore bypass the source-address restriction; the issue does not bypass password authentication. This issue is fixed in versions 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3.

auch bekannt als (1)

Weitere Namen und Kennungen dieser Entität.

GHSA-4r6f-9cpw-f6g6 osv

quellen

Welche Quellen diesen Datensatz belegen und wann.

osv nvd NVD CVE.org MITRE

veröffentlicht 2026-09-25geändert 2026-10-08

verwandt (5,011)

Verwandte Einträge.

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Memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.

+5006 weitere

Referenzen (5) nvd

Externe Belege — Patches, Meldungen, Analysen.

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