CVE-2026-10533

MediumCVSS 5.0

Published: 01/06/2026(UTC)Updated: 22/07/2026(UTC)Translated: 23/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.23%

14th percentile - higher than 14% of all known CVEs

Summary

A flaw was found in OpenShift Container Platform where completed pods with restartPolicy: Never do not count toward ResourceQuota pod limits, and Kubernetes events are not quota-scoped. A non-privileged user who can create pods in a namespace can exploit this to generate a large volume of events that accumulate in etcd, causing API server performance degradation across the cluster.

Risk Assessment

The organization is at risk of a denial-of-service (DoS) attack on the API server, potentially disrupting the entire OpenShift cluster and affecting application availability.

Recommendation

Apply patches provided by Red Hat for OpenShift Container Platform and consider restricting pod creation permissions in namespaces.

Other vulnerabilities in OpenShift Container Platform

CVE-2026-7309Medium
A flaw was found in the OpenShift Container Platform build system. A user with the `edit` ClusterRole can inject arbitrary environment variables, such as `LD_PRELOAD` or `http_proxy`, into `docker-build` containers through the `buildconfigs/instantiate` API. This incomplete fix for a previous vulnerability allows for information disclosure, specifically impacting the confidentiality of build traffic.

Original NVD description (English source)

A flaw was found in OpenShift Container Platform. Completed pods with restartPolicy: Never do not count toward ResourceQuota pod limits, and Kubernetes events are not quota-scoped. A non-privileged user who can create pods in a namespace can exploit this to generate a large volume of events that accumulate in etcd, causing API server performance degradation across the cluster.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS