Vulnerability details
CVE-2026-77410
rabbitmq amqp091-go
RabbitMQ amqp091-go: Resource Exhaustion (OOM) via Unbounded Body Buffer Allocation
CVSS 4.0
8.9High
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.9High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| rabbitmq | amqp091-go | < 1.13.0 | CVEProject cvelistV5 (CNA) |
References and advisories
4- 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
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Details
- Published
- 2026-09-16
- Last updated
- 2026-09-16
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.52%
Probability of exploitation in 30 days
44.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-789Memory Allocation with Excessive Size Value