Capsule: Incomplete fix of CVE-2026-22872: TenantResource RawItems and Generators still allow cluster-scoped resource creation (cross-tenant privilege escalation)
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| projectcapsule | capsule | affected |
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Github GHSA |
GHSA-jr6p-8pjj-mfx6 | Capsule has an incomplete fix of CVE-2026-22872: TenantResource RawItems and Generators still allow cluster-scoped resource creation (cross-tenant privilege escalation) |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.235% probability within 30 days)
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ssvc
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| First Time appeared |
Projectcapsule
Projectcapsule capsule |
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| Vendors & Products |
Projectcapsule
Projectcapsule capsule |
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| Description | Capsule is a multi-tenancy and policy-based framework for Kubernetes. From 0.13.0 until 0.13.8, after the incomplete CVE-2026-22872 fix, TenantResource RawItems and Generators in internal/controllers/resources/collect.go, including handleRawItem and handleGeneratorItem, did not apply the ResourceReference.LoadResources and IsNamespacedGVK cluster-scoped resource rejection guard used by NamespacedItems, allowing a Tenant Owner to create cluster-scoped resources such as ClusterRole or ValidatingWebhookConfiguration through the cluster-admin controller client. This issue is fixed in version 0.13.8. | |
| Title | Capsule: Incomplete fix of CVE-2026-22872: TenantResource RawItems and Generators still allow cluster-scoped resource creation (cross-tenant privilege escalation) | |
| Weaknesses | CWE-269 CWE-863 |
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| Metrics |
cvssV3_1
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