CVE-2026-22872
- Source
- https://cve.org/CVERecord?id=CVE-2026-22872
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22872.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-22872
- Aliases
- Published
- 2026-06-01T17:42:38.376Z
- Modified
- 2026-07-08T08:12:40.287767885Z
- Severity
-
- 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:P CVSS Calculator
- Summary
- Capsule TenantResource RawItems Cluster-Scoped Resource Creation Vulnerability
- Details
-
Capsule is a multi-tenancy and policy-based framework for Kubernetes. The Capsule Controller runs with cluster-admin privileges. Although the TenantResource RawItems processing logic forcibly sets the namespace, this is ineffective for cluster-scoped resources. Prior to version 0.13.0, tenant administrators can leverage the Controller's elevated privileges to create cluster-scoped resources (such as ClusterRole and ValidatingWebhookConfiguration) that they cannot create directly, achieving cross-tenant privilege escalation and cluster-level attacks. The attack vector has a few limiting factors. This attack requires Tenant Owner privileges and requires Capsule Controller running with cluster-admin privileges (default configuration). Additionally, some clusters may have additional admission controllers blocking malicious resources. Version 0.13.0 patches this issue.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-20", "CWE-863" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22872.json" }- References
Affected packages
Git / github.com/projectcapsule/capsule
Affected ranges
- Type
- GIT
- Repo
- https://github.com/projectcapsule/capsule
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "0.13.0" } ], "cpe": "cpe:2.3:a:projectcapsule:capsule:*:*:*:*:*:*:*:*", "source": [ "AFFECTED_FIELD", "CPE_RANGE", "REFERENCES" ] }