CVE-2026-93538
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| SUSE | Rancher | 0.16.0 < 0.16.1 | affected |
| SUSE | Rancher | 0.15.0 < 0.15.6 | affected |
| SUSE | Rancher | 0.14.0 < 0.14.10 | affected |
| SUSE | Rancher | 0.13.0 < 0.13.15 | affected |
| SUSE | Rancher | 0.12.0 < 0.12.19 | affected |
Weaknesses
- CWE-290: CWE-290 Authentication bypass by spoofing
- CWE-639: CWE-639 Authorization bypass through User-Controlled key
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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