Description
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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat OpenShift Builds 1.7.3 | — | — |
| Red Hat | Red Hat OpenShift Builds 1.8.1 | — | — |
| Red Hat | OpenShift Pipelines | — | — |
References
- RHSA-2026:36648 vendor-advisory
- RHSA-2026:41036 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-10840 vdb-entry
- RHBZ#2484720 issue-tracking