CVE-2026-66080

— UNSCOREDpublic exploit available

Published 2026-09-23 · Updated 2026-09-24

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

RabbitMQ is a messaging and streaming broker. Prior to versions 4.1.11, 4.2.6, and 4.3.0, validate_partitions only checks that the requested partition count is at least 1, with no upper bound. A large count such as lists:seq(0, 500000000) allocates roughly 8GB. Preconditions include The rabbitmq_stream_management plugin must be enabled. The caller needs the management tag and access to the target vhost.. This issue is fixed in versions 4.1.11, 4.2.6, and 4.3.0.

Weaknesses

CWE-770

Public exploit & PoC references

https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.0
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-wg79-5449-m728

All references

https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.0
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-wg79-5449-m728

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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