CVE-2026-10840 Missing authorization in OpenShift Pipelines
Any authenticated user can modify or delete Kueue and cert-manager resources, disrupting scheduling and overwriting TLS certificates.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10840?
CVE-2026-10840 is a high-severity missing authorization vulnerability in Red Hat OpenShift Pipelines, published on 4 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-732
Which versions are affected by CVE-2026-10840?
How do I fix CVE-2026-10840?
No fix has been published for CVE-2026-10840 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-10840 being exploited?
There is no known exploitation of CVE-2026-10840 in the wild and no public exploit code.
Sources
Also known as GHSA-35w7-q98m-gqgx.