CVE-2026-57212 PUBLISHED

RabbitMQ management HTTP API accepts request bodies larger than configured max_http_body_size

Assigner: GitHub_M
Reserved: 24.06.2026 Published: 10.07.2026 Updated: 10.07.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	Low
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	rabbitmq
Product	rabbitmq-server
Versions	Version >= 4.2.0, < 4.2.5 is affected Version >= 4.1.0, < 4.1.10 is affected Version >= 4.0.0, < 4.0.19 is affected Version >= 3.13.0, < 3.13.14 is affected

References

Problem Types

CWE-770: Allocation of Resources Without Limits or Throttling CWE