Tag: Known Problem
This is a documented known problem with known mitigations
| ID | Title | Description | Category | Technology | Tags |
|---|---|---|---|---|---|
| CRE-2024-0007 Critical Impact: 9/10 Mitigation: 8/10 | RabbitMQ Mnesia overloaded recovering persistent queues | The RabbitMQ cluster is processing a large number of persistent mirrored queues at boot. The underlying Erlang process, Mnesia, is overloaded (`** WARNING ** Mnesia is overloaded`). | Message Queue Problems | rabbitmq | Known ProblemRabbitMQPublic |
| CRE-2024-0008 High Impact: 9/10 Mitigation: 6/10 | RabbitMQ memory alarm | A RabbitMQ node has entered the “memory alarm” state because the total memory used by the Erlang VM (plus allocated binaries, ETS tables, and processes) has exceeded the configured `vm_memory_high_watermark`. While the alarm is active the broker applies flow-control, blocking publishers and pausing most ingress activity to protect itself from running out of RAM. | Message Queue Problems | rabbitmq | Known ProblemRabbitMQPublic |
| CRE-2024-0016 Low Impact: 4/10 Mitigation: 2/10 | Google Kubernetes Engine metrics agent failing to export metrics | The Google Kubernetes Engine metrics agent is failing to export metrics. | Observability Problems | gke-metrics-agent | Known ProblemGKEPublic |
| CRE-2024-0018 Medium Impact: 4/10 Mitigation: 5/10 | Neutron Open Virtual Network (OVN) high CPU usage | OVN daemons (e.g., ovn-controller) are stuck in a tight poll loop, driving CPU to 100 %. Logs show “Dropped … due to excessive rate” or “Unreasonably long … poll interval,” slowing port-binding and network traffic. | Networking Problems | neutron | Known ProblemOvnPublic |
| CRE-2024-0021 High Impact: 4/10 Mitigation: 5/10 | KEDA operator reconciler ScaledObject panic | KEDA allows for fine-grained autoscaling (including to/from zero) for event driven Kubernetes workloads. KEDA serves as a Kubernetes Metrics Server and allows users to define autoscaling rules using a dedicated Kubernetes custom resource definition. | Operator Problems | Unspecified | KEDACrashKnown ProblemPublic |
| CRE-2024-0043 Medium Impact: 6/10 Mitigation: 5/10 | NGINX Upstream DNS Failure | When a NGINX upstream becomes unreachable or its DNS entry disappears, NGINX requests begin to fail. | Proxy Problems | nginx | KafkaKnown ProblemPublic |
| CRE-2025-0025 Medium Impact: 6/10 Mitigation: 5/10 | Kafka broker replication mismatch | When the configured replication factor for a Kafka topic is greater than the actual number of brokers in the cluster, Kafka repeatedly fails to assign partitions and logs replication-related errors. This results in persistent warnings or an `InvalidReplicationFactorException` when the broker tries to create internal or user-defined topics. | Message Queue Problems | topic-operator | KafkaKnown ProblemPublic |