RabbitMQ amqp091-go: Resource Exhaustion (OOM) via Unbounded Body Buffer Allocation
Priority LOW 39CWE-789Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 fixed, 5 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-789.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00524 44th percentileScored 2026-11-07
Fix Partial amqp091-go (rabbitmq): 1.13.0github.com/rabbitmq/amqp091-go (Go): 1.13.0Red Hat: 4 advisoriesRed Hat: 4 fixed, 5 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| rabbitmq | amqp091-go | before 1.13.0 | 1.13.0 | Patch available | CNA |
| — | github.com/rabbitmq/amqp091-go (Go) | before 1.13.0 | 1.13.0 | Patch available | GHSA-r9c8-gcjp-xfwh |
- amqp091-go Vendorrabbitmq Affected before 1.13.0 Fixed in 1.13.0 Patch available CNA
- github.com/rabbitmq/amqp091-go (Go) Vendor— Affected before 1.13.0 Fixed in 1.13.0 Patch available GHSA-r9c8-gcjp-xfwh
Remediation
- Fix · CNA amqp091-go (rabbitmq) Fixed in 1.13.0
- Fix · GHSA-r9c8-gcjp-xfwh github.com/rabbitmq/amqp091-go (Go) Fixed in 1.13.0 Advisory →
Red Hat 4 advisories
- RHSA-2026:79546 Released 2026-10-08 · Red Hat rating ImportantRed Hat Quay 3.12.23
- Red Hat Quay 3.12 registry.redhat.io/quay/quay-rhel8
- RHSA-2026:79366 Released 2026-10-08 · Red Hat rating ImportantRed Hat Quay 3.10.27
- Red Hat Quay 3.10 registry.redhat.io/quay/quay-rhel8
- RHSA-2026:77656 Released 2026-10-07 · Red Hat rating ImportantRed Hat Quay 3.9.27
- Red Hat Quay 3.9 registry.redhat.io/quay/quay-rhel8
Show 1 more Red Hat advisories
- RHSA-2026:68290 Released 2026-09-16 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images opentelemetry-collector-contrib-0.161.0-0.1.hum1@aarch64, opentelemetry-collector-contrib-0.161.0-0.1.hum1@src, opentelemetry-collector-contrib-0.161.0-0.1.hum1@x86_64
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Custom Metric Autoscaler operator for Red Hat Openshift | Affected | No fix yet |
| Multicluster Global Hub | Affected | No fix yet |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet |
| Red Hat OpenStack Platform 18.0 | Affected | No fix yet |
| Red Hat Quay 3 | Affected | No fix yet |
| Red Hat Hardened Images | Fixed | RHSA-2026:68290 |
| Red Hat Quay 3.10 | Fixed | RHSA-2026:79366 |
| Red Hat Quay 3.12 | Fixed | RHSA-2026:79546 |
| Red Hat Quay 3.9 | Fixed | RHSA-2026:77656 |
Not affected: 7 products
- Cryostat 4
- Custom Metric Autoscaler operator for Red Hat Openshift
- OpenShift Serverless
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Quay 3.10
- Red Hat Quay 3.12
- Red Hat Quay 3.9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-77410
- 2026-10-03 Alias added: GHSA-r9c8-gcjp-xfwh
- 2026-10-07 Fix available: RHSA-2026:77656 · Red Hat
- 2026-10-08 Fix available: Red Hat Quay 3.9 · Red Hat
- 2026-10-09 Fix available: RHSA-2026:79546 · Red Hat
- 2026-10-09 Fix available: RHSA-2026:79366 · Red Hat
- 2026-10-09 Fix available: Red Hat Quay 3.10, Red Hat Quay 3.12 · Red Hat
- 2026-10-24 Affected versions changed · Red Hat
References
Other 5
- https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-r9c8-gcjp-xfwh
- https://github.com/rabbitmq/amqp091-go/pull/346
- https://github.com/rabbitmq/amqp091-go/commit/91b65fa0096a99a580cf51a31b24028ff1c60382
- https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0
- https://github.com/rabbitmq/amqp091-go
More rabbitmq vulnerabilities
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- TI-2026-41158 Resource allocation without limits in rabbitmq-server CVSS 3.1HIGH 7.5
- TI-2026-47695 RabbitMQ: OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint CVSS 4.0HIGH 8.2
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- TI-2026-45167 RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading CVSS 4.0HIGH 7.5
Sources
- CVE-2026-77410 · CVE Program
- CVE-2026-77410 · NVD
- FIRST EPSS
- GHSA-r9c8-gcjp-xfwh · GitHub Advisory Database · CC BY 4.0
- CVE-2026-77410 · Red Hat security data · CC BY 4.0
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