CVE-2026-67218Public exploitNetwork attack vectorHinoki check available

Privilege escalation via omitted super-stream authorization check

Published Sep 23, 2026 · Updated Sep 23, 2026

Missing authorization in affected RabbitMQ Server 4.x releases allows remote authenticated users to create persistent super-stream resources. The HTTP accept_content/2 handler calls rabbit_stream_manager:create_super_stream after checking only the management tag and virtual-host access, omitting the configure-permission check used by the native stream path. The rabbitmq_stream_management plugin, a management tag, and virtual-host access are required; no resource permission is needed, so the request creates an exchange, partition stream queues, and bindings cluster-wide.

CVSS severity2.1
Low
EPSS probability0.34%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in affected RabbitMQ Server 4.x releases allows remote authenticated users to create persistent super-stream resources. The HTTP accept_content/2 handler calls rabbit_stream_manager:create_super_stream after checking only the management tag and virtual-host access, omitting the configure-permission check used by the native stream path. The rabbitmq_stream_management plugin, a management tag, and virtual-host access are required; no resource permission is needed, so the request creates an exchange, partition stream queues, and bindings cluster-wide.

The record

CVE
CVE-2026-67218
Published
Sep 23, 2026
Updated
Sep 23, 2026
Vendor
RabbitMQ
Product
RabbitMQ Server
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 4.0.0, < 4.0.22
  2. Affected versionversion=>= 4.1.0, < 4.1.11
  3. Affected versionversion=>= 4.2.0, < 4.2.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

RabbitMQ · RabbitMQ Serverversion=>= 4.0.0, < 4.0.22; version=>= 4.1.0, < 4.1.11; version=>= 4.2.0, < 4.2.6

Published CVSS scores

2.1RabbitMQCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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