CVE-2026-22872Disclosure(projectcapsule / capsule)

LOWCVSS 9.1 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-20CWE-863

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • capsule

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-06-03); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Products
capsule

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-03: 1Mentions · 2026-07-30: 1Technical Details · 2026-06-03: 1Technical Details · 2026-07-30: 106-0307-30
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-06-031
Disclosure1
2026-07-301
General1
Full discourse2 posts
  • CVE@CVEnew
    General

    CVE-2026-65835 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 G… https://www.cve.org/CVERecord?id=CVE-2026-65835

    Post summary

    The statement reports that Capsule's 0.13.0‑0.13.8 releases are affected by CVE‑2026‑65835, but offers no PoC, exploit code, patch info, or evidence of active exploitation.

    000001.2K
    57.9K followersView on X
  • DailyCVE@dailycve
    Disclosure

    🔴 Capsule (#Kubernetes Multi-Tenancy Framework), Privilege Escalation via Cluster-Scoped Resource Injection, #CVE-2026-22872 (High Severity) -DC-Jun2026-178 https://dailycve.com/capsule-kubernetes-multi-tenancy-framework-privilege-escalation-via-cluster-scoped-resource-injection-cve-2026-22872-high-severity-dc-jun2026-178/

    Post summary

    A new privilege escalation flaw in Capsule (Kubernetes Multi‑Tenancy Framework) is disclosed, allowing cluster‑scoped resource injection and rated as high severity (CVE‑2026‑22872).

    0000037
    208 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appprojectcapsulecapsule---

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