CVE-2026-10840
Openshift-pipelines-operator-rh: openshift-pipelines-operator: tekton-scheduler-rolebinding grants system:authenticated write access to kueue and cert-manager resources
- State
- Published
- Severity
- 7.1 High
- Published
- Jun 4, 2026
- Updated
- Sep 7, 2026
- Reserved
- Jun 4, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H | redhat |
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H | redhat-SADP |
Weaknesses
- CWE-732 Incorrect Permission Assignment for Critical Resource
Affected Products
| Product | Versions |
|---|---|
Red Hat OpenShift Builds 1.7.3Red Hat |
|
Red Hat OpenShift Builds 1.8.1Red Hat |
|
OpenShift PipelinesRed Hat | |
OpenShift PipelinesRed Hat | |
OpenShift PipelinesRed Hat | |
OpenShift PipelinesRed Hat | |
OpenShift PipelinesRed Hat | |
OpenShift PipelinesRed Hat |
References
- RHSA-2026:36648vendor-advisory
- RHSA-2026:41036vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-10840vdb-entry
- RHBZ#2484720issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10840.json
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