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CVE-2026-57212RabbitMQ management HTTP API accepts request bodies larger than configured max_http_body_size
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.
7.1 HIGHEPSS 0.43%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.1 | HIGH | 4.0GitHub_M (CNA) | 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 |
| 7.7 | HIGH | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
Details
- CVE ID
- CVE-2026-57212
- Status
- Analyzed
- Assigner (CNA)
- GitHub_M
- Published
- Jul 10, 2026
- Last modified
- 2026-10-25 15:10 UTC
- Weaknesses
- CWE-770 · Allocation of Resources Without Limits or Throttling
Affected Products
As published by the CNA in the CVE record.
rabbitmqrabbitmq-server4 version ranges
- >= 4.2.0, < 4.2.5
- >= 4.1.0, < 4.1.10
- >= 4.0.0, < 4.0.19
- >= 3.13.0, < 3.13.14
References
- github.com https://github.com/rabbitmq/rabbitmq-server/commit/3976d148901bdfa82e1cd60b7a4534e073266ba5
- github.com https://github.com/rabbitmq/rabbitmq-server/commit/b8fc2ef7c50a2797d15e1ea7cf34f290032303bb
- github.com https://github.com/rabbitmq/rabbitmq-server/pull/15712
- github.com https://github.com/rabbitmq/rabbitmq-server/pull/15714
- github.com https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.5
- github.com https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-5cmq-vp28-xqrj