CVSS 3.0
9.8 criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-61547 alanxz rabbitmq-c: Out-of-bounds Write
Critical (9.8) in alanxz rabbitmq-c. EPSS 0.4% estimated probability of exploitation activity in the next 30 days.
On this page
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.
Severity
- EPSS
- 0.4% estimated probability of exploitation activity in the next 30 days; 34th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-787 Out-of-bounds Write
- Published
- Modified
- Assigned by
- GitHub_M (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| alanxz rabbitmq-c | < 0.17.0 |
Fix and patched versions
- Debian, Ubuntu: fixed package versions per release
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12 | librabbitmq | 0.11.0-1+deb12u3 | DEBIAN-CVE-2026-61547 |
| Debian | 13 | librabbitmq | 0.15.0-1+deb13u2 | DEBIAN-CVE-2026-61547 |
| Debian | 14 | librabbitmq | 0.17.0-1 | DEBIAN-CVE-2026-61547 |
| Ubuntu | 22.04:LTS | librabbitmq | 0.10.0-1ubuntu2.2 | UBUNTU-CVE-2026-61547 USN-8724-1 |
| Ubuntu | 24.04:LTS | librabbitmq | 0.11.0-1ubuntu0.2 | UBUNTU-CVE-2026-61547 USN-8724-1 |
| Ubuntu | 26.04:LTS | librabbitmq | 0.15.0-1ubuntu0.26.04.2 | UBUNTU-CVE-2026-61547 USN-8724-1 |
| Ubuntu | Pro:14.04:LTS | librabbitmq | 0.4.1-1ubuntu0.1~esm2 | USN-8724-1 |
| Ubuntu | Pro:16.04:LTS | librabbitmq | 0.7.1-1ubuntu0.2+esm1 | UBUNTU-CVE-2026-61547 USN-8724-1 |
| Ubuntu | Pro:18.04:LTS | librabbitmq | 0.8.0-1ubuntu0.18.04.2+esm1 | UBUNTU-CVE-2026-61547 USN-8724-1 |
| Ubuntu | Pro:20.04:LTS | librabbitmq | 0.10.0-1ubuntu0.20.04.1~esm1 | UBUNTU-CVE-2026-61547 USN-8724-1 |
| Azure Linux | 3 | librabbitmq | no fix listed | AZL-113362 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0; Microsoft's Azure Linux vulnerability data, MIT. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu.