CVE-2026-65835: CWE-269: Improper Privilege Management in projectcapsule capsule
CVE-2026-65835 is a medium severity vulnerability in projectcapsule's capsule framework affecting versions prior to 0.13.8. It involves improper privilege management where tenant owners could create cluster-scoped resources due to incomplete enforcement of resource scope restrictions. The issue was fixed in version 0.13.8.
AI Analysis
Technical Summary
Capsule is a multi-tenancy and policy-based framework for Kubernetes. Between versions 0.13.0 and 0.13.8, following an incomplete fix for CVE-2026-22872, certain internal controller functions (TenantResource RawItems and Generators in internal/controllers/resources/collect.go) did not apply the cluster-scoped resource rejection guard ResourceReference.LoadResources and IsNamespacedGVK. This allowed tenant owners to create cluster-scoped resources such as ClusterRole or ValidatingWebhookConfiguration using the cluster-admin controller client, bypassing intended restrictions. The vulnerability is resolved in version 0.13.8.
Potential Impact
Tenant owners could escalate privileges by creating cluster-scoped resources that should have been restricted, potentially impacting confidentiality, integrity, and availability of the Kubernetes cluster. The CVSS 3.1 base score is 6.6 (medium), reflecting network attack vector, low attack complexity, high privileges required, no user interaction, and partial impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade projectcapsule capsule to version 0.13.8 or later, where this improper privilege management issue is fixed. No other mitigation is indicated by the vendor advisory or data.
CVE-2026-65835: CWE-269: Improper Privilege Management in projectcapsule capsule
Description
CVE-2026-65835 is a medium severity vulnerability in projectcapsule's capsule framework affecting versions prior to 0.13.8. It involves improper privilege management where tenant owners could create cluster-scoped resources due to incomplete enforcement of resource scope restrictions. The issue was fixed in version 0.13.8.
CVSS v3.1
Score 6.6medium
Affected software
projectcapsule
capsule
pkg:github/projectcapsule/capsuleRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Capsule is a multi-tenancy and policy-based framework for Kubernetes. Between versions 0.13.0 and 0.13.8, following an incomplete fix for CVE-2026-22872, certain internal controller functions (TenantResource RawItems and Generators in internal/controllers/resources/collect.go) did not apply the cluster-scoped resource rejection guard ResourceReference.LoadResources and IsNamespacedGVK. This allowed tenant owners to create cluster-scoped resources such as ClusterRole or ValidatingWebhookConfiguration using the cluster-admin controller client, bypassing intended restrictions. The vulnerability is resolved in version 0.13.8.
Potential Impact
Tenant owners could escalate privileges by creating cluster-scoped resources that should have been restricted, potentially impacting confidentiality, integrity, and availability of the Kubernetes cluster. The CVSS 3.1 base score is 6.6 (medium), reflecting network attack vector, low attack complexity, high privileges required, no user interaction, and partial impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade projectcapsule capsule to version 0.13.8 or later, where this improper privilege management issue is fixed. No other mitigation is indicated by the vendor advisory or data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-22T23:16:47.753Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6baf0d9c2644c7f89b9bb5
Added to database: 07/30/2026, 20:07:41 UTC
Last enriched: 08/07/2026, 14:38:43 UTC
Last updated: 09/11/2026, 07:31:54 UTC
Views: 72
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