High [CVE-2026-77409] RabbitMQ amqp091-go: Denial of Service due to synchronous event channel blocking
This high-severity Red Hat Linux advisory covers CVE-2026-77409; related products: Red Hat Hardened Images, Multicluster Global Hub, OpenShift Serverless.
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Summary
RabbitMQ amqp091-go: Denial of Service due to synchronous event channel blocking. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:68290 with package opentelemetry-collector-contrib-main-0.161.0-0.1.hum1.
Affected products named by the advisory: Red Hat Hardened Images; Multicluster Global Hub; OpenShift Serverless; Red Hat Advanced Cluster Management for Kubernetes 2; and 2 more.
Affected products named by the advisory: Red Hat OpenStack Platform 18.0; Red Hat Quay 3.
- < 1.13.0
Official advisory · high-confidence parse· fetched 12 days ago·verify at source
- opentelemetry-collector-contrib-main-0.161.0-0.1.hum1
- RHSA-2026:68290
Official advisory · high-confidence parse· fetched 12 days ago·verify at source
Mitigation checklist
- Use adequately buffered notification channels and ensure event consumers continuously drain them. Update applications using amqp091-go when a fixed version is available.
Official advisory · high-confidence parse· fetched 12 days ago·verify at source
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