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Vulnerabilities

Security fix · CVE-2026-67230

RabbitMQ is a messaging and streaming broker.

Published Sep 25, 2026 · catalog updated Oct 20, 2026 · rabbitmq server

Last checked Oct 23, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-67230. EPSS is 0.58%. Act only if a listed version of rabbitmq server is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.58%
Remediation
Version ranges on file
Affected products
cpe broadcom/rabbitmq server

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe broadcom/rabbitmq server< 3.13.15
  • cpe broadcom/rabbitmq server< 4.0.20
  • cpe broadcom/rabbitmq server< 4.1.11
  • cpe broadcom/rabbitmq server< 4.2.6

How to fix CVE-2026-67230

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-67230. EPSS is 0.58%. Act only if a listed version of rabbitmq server is installed.

Which versions are affected?

Compare what you have installed with broadcom/rabbitmq server < 3.13.15; broadcom/rabbitmq server < 4.0.20; broadcom/rabbitmq server < 4.1.11; broadcom/rabbitmq server < 4.2.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 0.58%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 25, 2026 · NIST NVD

    Detected

    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,

  2. Oct 20, 2026 · NIST NVD

    Updated

    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,

Sources

  • CVE.orgVulnerability recordCVE-2026-67230

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-67230

    30-day exploitation probability 0.58%

    first.org
  • NIST NVDVulnerability recordCVE-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 s

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • NIST NVDOct 20, 2026