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CVE-2026-57212

Broadcom Rabbitmq Server denial of service

7.7 HIGHPublic exploitEPSS 0.43%
  1. Published10 Jul 2026

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected products

Broadcom Rabbitmq Server≥ 3.13.0 < 4.2.5

Remediation

Fixed in
Broadcom Rabbitmq Server≥ 4.2.5

References

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Frequently asked

Is CVE-2026-57212 being actively exploited?

CVE-2026-57212 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.43%.

How severe is CVE-2026-57212?

CVE-2026-57212 has a CVSS 3.1 base score of 7.7, rated high. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2026-57212?

Affected products include Broadcom Rabbitmq Server.

How do I fix CVE-2026-57212?

Upgrade affected software to a fixed version, for example Broadcom Rabbitmq Server 4.2.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-57212 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.