SCA: security update for mcp-server-kubernetes (GHSA-wvxp-jp4w-w8wg)

high Tenable Self-Hosted Container Security Plugin ID 436252

Description

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

- MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. Prior to
2.9.8, there is a security issue exists in the exec_in_pod tool of the mcp-server-kubernetes MCP Server.
The tool accepts user-provided commands in both array and string formats. When a string format is
provided, it is passed directly to shell interpretation (sh -c) without input validation, allowing shell
metacharacters to be interpreted. This vulnerability can be exploited through direct command injection or
indirect prompt injection attacks, where AI agents may execute commands without explicit user intent. This
vulnerability is fixed in 2.9.8. (CVE-2025-66404)

See Also

https://github.com/advisories/GHSA-wvxp-jp4w-w8wg

Plugin Details

Severity: High

ID: 436252

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 12/4/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2025-66404

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/3/2025

Vulnerability Publication Date: 12/3/2025

Reference Information

CVE: CVE-2025-66404

cwe: CWE-77