CVE-2026-10840
A flaw was found in the OpenShift Pipelines operator.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Source
- secalert@redhat.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.