CVE-2026-93538
A cross-tenant authorization issue was discovered in SUSE Rancher Fleet.
Impact
A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated cluster registration, cluster labels supplied by the registering agent, including labels in the reserved management.cattle.io/ namespace such as the cluster display name label, were applied to the resulting upstream Cluster object. Because Fleet resolves GitRepo and Bundle targets from those cluster labels, a party able to register a cluster into a Fleet workspace namespace shared with other tenants could cause its own cluster to satisfy targeting rules that administrators intended for a different cluster. This affects SUSE Rancher Fleet 0.16 before 0.16.1, 0.15 before 0.15.6, 0.14 before 0.14.10, 0.13 before 0.13.15, 0.12 before 0.12.19 and older versions.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Suse | Rancher Fleet | from 0.12.0 before 0.12.19 from 0.13.0 before 0.13.15 from 0.14.0 before 0.14.10 from 0.15.0 before 0.15.6 from 0.16.0 before 0.16.1 |