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.
Metrics
Affected Vendors & Products
References
History
Wed, 07 Oct 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Suse rancher Fleet
|
|
| CPEs | cpe:2.3:a:suse:rancher_fleet:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Suse rancher Fleet
|
Mon, 28 Sep 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 28 Sep 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Cross-tenant BundleDeployment and Secret disclosure via spoofed cluster labels during agent-initiated registration in Fleet | |
| First Time appeared |
Suse
Suse rancher |
|
| Weaknesses | CWE-290 CWE-639 |
|
| CPEs | cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Suse
Suse rancher |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: suse
Published: 2026-09-28T14:10:21.720Z
Updated: 2026-09-28T16:22:26.562Z
Reserved: 2026-09-18T09:08:10.294Z
Link: CVE-2026-93538
Updated: 2026-09-28T16:22:22.428Z
Status : Analyzed
Published: 2026-09-28T15:17:24.927
Modified: 2026-10-07T17:13:37.180
Link: CVE-2026-93538
No data.