RabbitMQ MQTT 5: inapplicable PUBLISH property disconnects matching subscribers (rabbitmq rabbitmq-server)

CVE-2026-67418
MEDIUM 5.3

En bref

Source
NVD
EPSS
EPSS 0.40 % · centile 34 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
GitHub_M
Statut NVD
Awaiting Analysis

Description

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmq_mqtt/src/rabbit_mqtt_packet.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated publisher with topic write permission can cause the broker to store and route that inapplicable property to a separately authenticated matching subscriber. When the subscriber path serializes the outbound PUBLISH, serialise_prop/2 has no matching clause, and the uncontained function_clause exception closes the victim MQTT or Web MQTT connection. The publisher connection and broker remain available, and queued replay, retained-message persistence, and broker-wide denial of service were not established. This issue is fixed in versions 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5.

Faiblesses (CWE)

  • CWE-1286 — Improper Validation of Syntactic Correctness of Input
  • CWE-248 — Exception non interceptée

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 4.0MEDIUM 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NGitHub_M
CVSS 4.0MEDIUM 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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:XNVD · security-advisories@github.com (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
rabbitmq · rabbitmq-serveraffected >= 3.13.0, < 3.13.19 ; affected >= 4.0.0, < 4.0.24 ; affected >= 4.1.0, < 4.1.15 ; affected >= 4.2.0, < 4.2.10 ; affected >= 4.3.0, < 4.3.5

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD