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SCA: security update for github.com/projectcapsule/capsule (GHSA-fcpm-6mxq-m5vv)

critical Tenable Self-Hosted Container Security Plugin ID 433383

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. A namespace label injection
 vulnerability in Capsule v0.10.3 and earlier allows authenticated tenant users to inject arbitrary labels
 into system namespaces (kube-system, default, capsule-system), bypassing multi-tenant isolation and
 potentially accessing cross-tenant resources through TenantResource selectors. This vulnerability enables
 privilege escalation and violates the fundamental security boundaries that Capsule is designed to enforce.
 This vulnerability is fixed in 0.10.4. (CVE-2025-55205)

See Also

https://github.com/advisories/GHSA-fcpm-6mxq-m5vv

Plugin Details

Severity: Critical

ID: 433383

Version: Revision 1.13

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.59

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2025-55205

CVSS v3

Risk Factor: Critical

Base Score: 9

Temporal Score: 7.8

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/18/2025

Vulnerability Publication Date: 8/18/2025

Reference Information

CVE: CVE-2025-55205

cwe: CWE-863