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CVE PROGRAM SOURCE RECORD7.0 High

CVE-2026-44949

Unauthenticated namespace creation and RBAC injection via rancher-webhook FleetWorkspace mutating webhook

Description

A Rancher FleetWorkspace admission path allowed side effects to occur in the Rancher webhook handler for versions 0.7.0 up to 0.7.10, 0.8.0 up to 0.8.7, 0.9.0 up to 0.9.6 and 0.10.0 up to 0.10.7. An unauthenticated attacker with network access to the in-cluster rancher-webhook service could submit a crafted admission payload and cause workspace-related Kubernetes objects to be created with attacker-chosen identity data.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

SUSE Rancher

Default version status: unaffected

  • 0.7.0 to < 0.7.10affected
  • 0.8.0 to < 0.8.7affected
  • 0.9.0 to < 0.9.6affected
  • 0.10.0 to < 0.10.7affected

References