Detections
Analytics

SCA: security update for github.com/projectcapsule/capsule (GHSA-qjjm-7j9w-pw72)

high Tenable Cloud Security Plugin ID 442439

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-22872)

Solution

Update the github.com/projectcapsule/capsule library and its related packages to version 0.13.0 or later.

See Also

https://github.com/advisories/GHSA-qjjm-7j9w-pw72

Plugin Details

Severity: High

ID: 442439

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 5/28/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.35

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2026-22872

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.2

Threat Score: 6.9

Threat Vector: CVSS:4.0/E:P

Vector: 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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/28/2026

Vulnerability Publication Date: 5/28/2026

Reference Information

CVE: CVE-2026-22872