CVE-2026-65835CWE-269CWE-863broken-access-controlprivilege-escalation

CVE-2026-65835

Medium · published July 31, 2026

CVSS v3.1
6.6
EPSS
0%
Percentile
24.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00325 · 24.4th percentile
Weaknesses
CWE-269 · Improper Privilege Management; CWE-863 · Incorrect Authorization
Published
2026-07-31T00:18Z
References (3)
https://github.com/projectcapsule/capsule/releases/tag/v0.13.8 · [email protected]https://github.com/projectcapsule/capsule/security/advisories/GHSA-jr6p-8pjj-mfx6 · [email protected]https://github.com/projectcapsule/capsule/security/advisories/GHSA-jr6p-8pjj-mfx6 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 30 JUL 19:53Z
    Capsule: Incomplete fix of CVE-2026-22872: TenantResource RawItems and Generators still allow cluster-scoped resource creation (cross-tenant privilege escalation)
    cvelistv5