CVE-2026-10840

EUVD-2026-34248
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.1 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 7%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
Red HatRed Hat OpenShift Builds 1.7.4
1783341609 ≤
𝑥
< *
ADP
Red HatRed Hat OpenShift Builds 1.8.1
1784121108 ≤
𝑥
< *
ADP
Common Weakness Enumeration
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