CVE-2026-62246 Missing authorization in kamaji
Attackers can exploit namespace/name collisions to access and modify other tenants' Kubernetes data, breaking isolation in Kamaji hosted control planes.
- 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-2026-62246?
CVE-2026-62246 is a high-severity missing authorization vulnerability in clastix kamaji, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Kamaji is the Hosted Control Plane Manager for Kubernetes. Prior to 26.7.4-edge, Kamaji derives a TenantControlPlane datastore schema, database user, and etcd key prefix from a lossy namespace-and-name normalization in GetDefaultDatastoreSchema() and GetDefaultDatastoreUsername(), allowing distinct tenants with colliding normalized identifiers to share control-plane state and read, modify, or destroy another tenant's Kubernetes data. This issue is fixed in version 26.7.4-edge.
Which versions are affected by CVE-2026-62246?
How do I fix CVE-2026-62246?
No fix has been published for CVE-2026-62246 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-2026-62246 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-62246 exists.
Sources
Also known as GHSA-4f3f-65vx-r34f.