Vulnerability · Published Sep 16, 2026 · Assigned by GitHub_M
CVE-2026-77410RabbitMQ amqp091-go: Resource Exhaustion (OOM) via Unbounded Body Buffer Allocation
High 8.9
In plain English
A high-severity security flaw in amqp091-go from rabbitmq. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, Channel.recvContent in channel.go preallocates the message body slice with the uint64 ch.header.Size value supplied by an AMQP content header without capping the allocation to the negotiated Connection.Config.FrameSize value. A malicious or compromised broker can send an extreme declared body size and cause the Go runtime to attempt a correspondingly large allocation before body data is received. The allocation can exhaust memory and terminate the client process. This issue is fixed in version 1.13.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | golang-github-rabbitmq-amqp091-go | no fix listed | DEBIAN-CVE-2026-77410 |
| Debian:13 | golang-github-rabbitmq-amqp091-go | no fix listed | DEBIAN-CVE-2026-77410 |
| Debian:14 | golang-github-rabbitmq-amqp091-go | 1.14.0-1 | DEBIAN-CVE-2026-77410 |
| Go | github.com/rabbitmq/amqp091-go | 1.13.0 | GO-2026-6500 |
| Go | github.com/rabbitmq/amqp091-go | 1.13.0 | GHSA-r9c8-gcjp-xfwh |
| Ubuntu:24.04:LTS | golang-github-rabbitmq-amqp091-go | no fix listed | UBUNTU-CVE-2026-77410 |
| Ubuntu:26.04:LTS | golang-github-rabbitmq-amqp091-go | no fix listed | UBUNTU-CVE-2026-77410 |
| Ubuntu:26.10 | golang-github-rabbitmq-amqp091-go | no fix listed | UBUNTU-CVE-2026-77410 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| rabbitmq | amqp091-go | < 1.13.0 |
Weakness: CWE-789 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
References
- https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-r9c8-gcjp-xfwh x_refsource_CONFIRM
- https://github.com/rabbitmq/amqp091-go/pull/346 x_refsource_MISC
- https://github.com/rabbitmq/amqp091-go/commit/91b65fa0096a99a580cf51a31b24028ff1c60382 x_refsource_MISC
- https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0 x_refsource_MISC