CVE-2026-66069Network attack vector

Authentication-counter erasure via monitoring-tagged DELETE access

Published Sep 23, 2026 · Updated Sep 23, 2026

Missing authorization in RabbitMQ 4.1.0 through 4.1.12 and 4.2.0 through 4.2.6 allows remote authenticated users to reset authentication counters. The rabbit_mgmt_wm_auth_attempts is_authorized/2 handler applies is_authorized_monitor to every method, so DELETE invokes rabbit_core_metrics:reset_auth_attempt_metrics() without an administrator check. The management plugin and a monitoring-tagged account are required; exploitation clears only per-node counters, not authentication logs.

CVSS severity2.3
Low
EPSS probability0.40%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in RabbitMQ 4.1.0 through 4.1.12 and 4.2.0 through 4.2.6 allows remote authenticated users to reset authentication counters. The rabbit_mgmt_wm_auth_attempts is_authorized/2 handler applies is_authorized_monitor to every method, so DELETE invokes rabbit_core_metrics:reset_auth_attempt_metrics() without an administrator check. The management plugin and a monitoring-tagged account are required; exploitation clears only per-node counters, not authentication logs.

The record

CVE
CVE-2026-66069
Published
Sep 23, 2026
Updated
Sep 23, 2026
Vendor
RabbitMQ
Product
RabbitMQ Server
Classifications
CWE-862, T1070
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

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Is a vulnerable build present?

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

  1. Affected versionversion=>= 4.1.0, < 4.1.13
  2. Affected versionversion=>= 4.2.0, < 4.2.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

RabbitMQ · RabbitMQ Serverversion=>= 4.1.0, < 4.1.13; version=>= 4.2.0, < 4.2.7

Published CVSS scores

2.3RabbitMQCVSS:4.0/AV:N/AC:L/AT:P/PR:L/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1070Indicator Removal

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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