RabbitMQ management HTTP API accepts request bodies larger than configured max_http_body_size

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Summary

CVECVE-2026-57212
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-10 21:16:58 UTC
Updated2026-07-10 21:16:58 UTC
DescriptionRabbitMQ 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.

Risk And Classification

Primary CVSS: v4.0 7.1 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-770 | CWE-770 CWE-770: Allocation of Resources Without Limits or Throttling

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/C...
4.0CNADECLARED7.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
Low

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rabbitmq Rabbitmq-server affected >= 4.2.0, < 4.2.5 Not specified
CNA Rabbitmq Rabbitmq-server affected >= 4.1.0, < 4.1.10 Not specified
CNA Rabbitmq Rabbitmq-server affected >= 4.0.0, < 4.0.19 Not specified
CNA Rabbitmq Rabbitmq-server affected >= 3.13.0, < 3.13.14 Not specified

References

ReferenceSourceLinkTags
github.com/rabbitmq/rabbitmq-server/pull/15714 [email protected] github.com
github.com/rabbitmq/rabbitmq-server/commit/b8fc2ef7c50a2797d15e1ea7cf34f... [email protected] github.com
github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-5cmq-vp28-xqrj [email protected] github.com
github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.5 [email protected] github.com
github.com/rabbitmq/rabbitmq-server/commit/3976d148901bdfa82e1cd60b7a453... [email protected] github.com
github.com/rabbitmq/rabbitmq-server/pull/15712 [email protected] github.com
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