CVE-2026-61547
rabbitmq-c: Heap Buffer Overflow in amqp_send_frame() When Serializing Oversized AMQP_FRAME_BODY
rabbitmq-c is a C-language AMQP client library for RabbitMQ. Prior to version 0.17.0, a heap buffer overflow exists in rabbitmq-c when the public amqp_send_frame() API is used to serialize an oversized AMQP_FRAME_BODY. The issue occurs because amqp_frame_to_bytes() copies frame.payload.body_fragment.len bytes into the connection outbound buffer without validating that the body fragment fits within the allocated frame buffer. An application that passes an oversized body frame to amqp_send_frame() can trigger a heap out-of-bounds write, resulting in process crash and memory corruption. This issue has been patched in version 0.17.0.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| rabbitmq-c alanxz |
< 0.17.0 (affected) | CNA: GitHub_M |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.0 / 9.8 critical |
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA: GitHub_M |
| 3.0 / 9.8 critical |
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD: [email protected] |
Exploit evidence
- https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-hfjv-vcp3-39wh
exploit · ADP: CISA-ADP
References
- https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-hfjv-vcp3-39whCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/alanxz/rabbitmq-c/pull/892CNA: GitHub_M · x_refsource_MISC
- https://github.com/alanxz/rabbitmq-c/releases/tag/v0.17.0CNA: GitHub_M · x_refsource_MISC
- https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-hfjv-vcp3-39whADP: CISA-ADP · exploit
- https://github.com/alanxz/rabbitmq-c/pull/892[email protected]
- https://github.com/alanxz/rabbitmq-c/releases/tag/v0.17.0[email protected]
- https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-hfjv-vcp3-39wh[email protected]
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