All vulnerabilities
CVE-2026-67230GHSA-7v63-j4gm-p4rh

rabbitmq-server: RabbitMQ: Web-STOMP unbounded pre-auth accumulation

rabbitmq rabbitmq-server
Open in ThreatlineRecord JSON
CVSS
6.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.58%Chance of exploitation activity in the next 30 days, higher than 47% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published25 Sep 2026Updated 29 Sep 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

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.

Text from CVE List

Affected versions 4

  • rabbitmq-serveraffected: >= 4.2.0, < 4.2.6CVE List
  • rabbitmq-serveraffected: >= 4.1.0, < 4.1.11CVE List
  • rabbitmq-serveraffected: >= 4.0.0, < 4.0.20CVE List
  • rabbitmq-serveraffected: >= 3.13.0, < 3.13.15CVE List

References 5