RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmq_management HTTP API accepts oversized valid JSON bodies on with_decode and direct_request paths because read_complete_body checks the accumulated size before the final chunk but not the final combined size. This issue is fixed in versions 3.13.14, 4.0.19, 4.1.10, and 4.2.5.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-548235ea3b advisory.

    More CVEs

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    Fixed CVE-2026-44839

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of RabbitMQ installed on the remote host is affected by multiple vulnerabilities:

  - The rabbitmq_management HTTP API accepts oversized valid JSON bodies on with_decode and direct_request paths because     read_complete_body checks the accumulated size before the final chunk but not the final combined size.
    (CVE-2026-57212)

  - The rabbitmq_federation_management plugin renders the consumer_tag field on the Federation Status page without HTML     escaping, allowing a user who can configure a federation upstream or policy to execute JavaScript in the browser of     a user viewing that page. (CVE-2026-57213)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the     rabbitmq_management HTTP API accepts oversized valid JSON bodies on with_decode and direct_request paths     because read_complete_body checks the accumulated size before the final chunk but not the final combined     size. This issue is fixed in versions 3.13.14, 4.0.19, 4.1.10, and 4.2.5. (CVE-2026-57212)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
333505	Fedora 43 : rabbitmq-server (2026-548235ea3b)	Nessus	Fedora Local Security Checks	Local	high
327580	RabbitMQ 3.13.x < 3.13.14 / 4.0.x < 4.0.19 / 4.1.x < 4.1.10 / 4.2.x < 4.2.5 Multiple Vulnerabilities	Nessus	Misc.	Local	high
326532	Linux Distros Unpatched Vulnerability : CVE-2026-57212	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-57212

high

Tenable Plugins

high

high

high