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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat OpenShift Builds 1.7.3 | — |
| Red Hat | Red Hat OpenShift Builds 1.8.1 | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | Red Hat OpenShift Builds 1.7.3 | — |
| Red Hat | Red Hat OpenShift Builds 1.8.1 | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
| Red Hat | OpenShift Pipelines | — |
References
- https://access.redhat.com/errata/RHSA-2026:36648
- https://access.redhat.com/errata/RHSA-2026:41036
- https://access.redhat.com/security/cve/CVE-2026-10840
- https://bugzilla.redhat.com/show_bug.cgi?id=2484720
- https://access.redhat.com/errata/RHSA-2026:36648
- https://access.redhat.com/errata/RHSA-2026:41036
- https://access.redhat.com/security/cve/CVE-2026-10840
- https://bugzilla.redhat.com/show_bug.cgi?id=2484720
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10840.json
Timeline
- Published
- Jun 4, 2026
- Last modified
- Sep 6, 2026
- NVD status
- Awaiting Analysis