Medium severity · published Jun 1, 2026
CVE-2026-10533
Openshift: openshift: non-admin user can bypass resourcequota and flood etcd with events causing cluster-wide api degradation
5.0
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat OpenShift Container Platform 4 · Red Hat
All versions, or not specified · source: vendor
OC
Openshift Container Platform · Redhat
4.0 · source: NVD
Affected product
RH
Red Hat OpenShift Container Platform 4
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10533
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-10533
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-10533
Permissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=2483727
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