Vulnerability · Published Jun 1, 2026 · Assigned by redhat

CVE-2026-10533Openshift: openshift: non-admin user can bypass resourcequota and flood etcd with events causing cluster-wide api degradation

Medium 5.0

In plain English

A medium-severity resource allocation without limits in Red Hat OpenShift Container Platform 4 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)5.0Medium

Exploit odds (30 days)0.2%top 86.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Red Hat	Red Hat OpenShift Container Platform 4	see references

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

References

https://access.redhat.com/security/cve/CVE-2026-10533 vdb-entry, x_refsource_REDHAT
RHBZ#2483727 issue-tracking, x_refsource_REDHAT