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Vulnerability · Published Sep 23, 2026 · Assigned by GitHub_M

CVE-2026-66069RabbitMQ: Monitoring-tag DELETE of auth-attempt metrics

Low 2.3

In plain English

A low-severity missing authorization in rabbitmq-server from rabbitmq. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)2.3Low
Exploit odds (30 days)0.3%top 76.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13rabbitmq-serverno fix listedDEBIAN-CVE-2026-66069
Debian:14rabbitmq-server4.3.0-2DEBIAN-CVE-2026-66069
Ubuntu:22.04:LTSrabbitmq-serverno fix listedUBUNTU-CVE-2026-66069
Ubuntu:24.04:LTSrabbitmq-serverno fix listedUBUNTU-CVE-2026-66069
Ubuntu:26.04:LTSrabbitmq-serverno fix listedUBUNTU-CVE-2026-66069

Affected products (as reported)

VendorProductVersions
rabbitmq rabbitmq-server >= 4.1.0, < 4.1.13>= 4.2.0, < 4.2.7

Weakness: CWE-862 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References