CVE-2026-10533
OpenShift Container Platform ResourceQuota Bypass via Pod Events
Publication date: 2026-06-01
Last updated on: 2026-06-01
Assigner: Red Hat, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| redhat | openshift_container_platform | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-770 | The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. |
Attack-Flow Graph
AI Powered Q&A
How can this vulnerability impact me? :
The primary impact of this vulnerability is performance degradation of the API server across the cluster. Because a non-privileged user can generate a large volume of events that are not properly limited by quotas, the etcd datastore can become overloaded.
This can lead to slower response times, reduced availability, and potential disruption of cluster operations, affecting all users and workloads running on the OpenShift Container Platform.
Can you explain this vulnerability to me?
This vulnerability exists in the OpenShift Container Platform where completed pods with the restartPolicy set to Never are not counted toward ResourceQuota pod limits. Additionally, Kubernetes events are not scoped by quota. This allows a non-privileged user who can create pods in a namespace to exploit the system by generating a large volume of events that accumulate in etcd.
The accumulation of these events in etcd leads to performance degradation of the API server across the entire cluster.