CVE-2026-67226: falha de média gravidade em rabbitmq-server
RabbitMQ: Admin-only atom exhaustion: PUT /api/users tags list
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.9epss 0.4%
RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.22 and 4.1.14 and 4.2.7, Admin-only atom exhaustion: PUT /api/users tags list. settags/2 maps rabbitdatacoercion:toatom/1 over the user's tags list. The 20 MB management body limit fits ~3-4M short tag strings. An administrator can crash the node in a single request by creating a user (or importing definitions) with ~1M unique tag administrator. This issue is fixed in versions 4.0.22 and 4.1.14 and 4.2.7.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Produtos afetados
rabbitmq · rabbitmq-serverCVEs relacionadas — rabbitmq-server
No mesmo produto, das mais perigosas para as menos.
CVE-2026-57219HIGHRabbitMQ: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less common OAuth 2 configurationsEPSS 2.8%CVE-2021-32718LOWImproper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in RabbitMQ management UIEPSS 1.4%CVE-2021-32719LOWImproper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in RabbitMQ federation management pluginEPSS 1.4%CVE-2023-46118MEDIUMDenial of Service by publishing large messages over the HTTP APIEPSS 1.3%CVE-2026-67414MEDIUMRabbitMQ AMQP 1.0 parser: amplification memory-exhaustion DoS via zero-width array aggregationEPSS 0.6%CVE-2026-57211MEDIUMRabbitMQ: UNC SSRF affecting the management UI on WindowsEPSS 0.6%