CVE-2026-10840: Red Hat Openshift Pipelines

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw was found in the OpenShift Pipelines operator. The tekton-scheduler-rolebinding ClusterRoleBinding grants the system:authenticated group write access to Kueue and cert-manager custom resources via the tekton-scheduler-role ClusterRole. When Kueue or cert-manager CRDs are present on the cluster, any authenticated user can disrupt workload scheduling, tamper with scheduling priorities, delete other tenants' Workload objects, or induce cert-manager to overwrite TLS Secrets including the default ingress controller certificate.

Affected products

• Red Hat Openshift Pipelines
• Red Hat Red Hat Openshift Builds 1.7.3: before 1783341609 (fixed in 1783341609)
• Red Hat Red Hat Openshift Builds 1.8.1: before 1784121108 (fixed in 1784121108)

Published 2026-06-04. Last modified 2026-09-06.