Missing Authorization Affecting rabbitmq-server package, versions <4.3.0-2


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.4% (31st percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-RABBITMQSERVER-20128047
  • published25 Sept 2026
  • disclosed23 Sept 2026

Introduced: 23 Sep 2026

CVE-2026-66069  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade Debian:unstable rabbitmq-server to version 4.3.0-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rabbitmq-server package and not the rabbitmq-server package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

RabbitMQ is a messaging and streaming broker. Prior to versions 4.1.13, 4.2.7, and 4.3.0, is_authorized/2 uses is_authorized_monitor for all methods. DELETE resets rabbit_core_metrics:reset_auth_attempt_metrics(). Impact is cosmetic (counters only, no log erasure), but inconsistent with rabbit_mgmt_wm_reset.erl which requires admin for the analogous operation. A monitoring-tagged user can reset the per-node authentication-attempt counters via DELETE /api/auth/attempts/:node, erasing evidence of brute-force activity. The sibling endpoint wm_reset requires administrator. Preconditions include Management plugin enabled monitoring tag. This issue is fixed in versions 4.1.13, 4.2.7, and 4.3.0.

CVSS Base Scores

version 3.1