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    CVE-2026-67230

    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 Web STOMP WebSocket handler enforced neither max_frame_size nor login_timeout before authentication, allowing an unauthenticated client to keep a connection alive with a slow stream of small frames and accumulate unbounded pre-authentication state. The rabbitmq_web_stomp plugin must be enabled, and no authentication is required to reach the vulnerable path. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

    Published:Sep 25, 2026
    Last Modified:Oct 20, 2026
    EPS:Sep 25, 2026
    EPSS Score:0.0047
    CVSS Score:7.5

    Affected Products

    Vendor
    Broadcom
    Product
    Rabbitmq Server
    Vendor
    Rabbitmq
    Product
    Rabbitmq-server

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-67419 (CVSS 7.1) — RabbitMQ is a messaging and streaming broker. Prior to 4.3.5, an authenticated user who can bind a queue to a …
    CVE-2026-67421 (CVSS 4.5) — 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, Ra…
    CVE-2026-67408 (CVSS 7.1) — RabbitMQ is a messaging and streaming broker. From 4.1.0 until 4.3.3, 4.2.9, and 4.1.11, Stream Management Sup…
    CVE-2026-67406 (CVSS 4.6) — RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3, 4.2.9, 4.1.14, and 4.0.23, Shovel does n…
    CVE-2026-67410 (CVSS 8.2) — RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.3.3 and 4.2.9, OAuth2 Client Secret Exposed v…
    CVE-2026-67227 (CVSS 5.9) — RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.22 and 4.1.14 and 4.2.7 and 4.3.1, Atom exh…
    CVE-2026-67407 (CVSS 5.1) — RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3 and 4.2.9 and 4.1.14 and 4.0.23, Incomple…
    CVE-2026-67226 (CVSS 6.9) — RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.22 and 4.1.14 and 4.2.7, Admin-only atom ex…
    CVE-2026-67411 (CVSS 6) — 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, nat…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High