Detections
Analytics

SCA: security update for mcp-server-kubernetes (GHSA-wmg3-h8mf-wgvr)

critical Tenable Self-Hosted Container Security Plugin ID 445926

Description

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

 - MCP Server Kubernetes before 3.9.0 contains an argument injection vulnerability in structured tools
 (kubectl_get, kubectl_describe, kubectl_delete) that allows attackers to bypass the assertNoDangerousFlags
 security check by supplying resourceType and name parameters with leading dashes. Attackers can inject the
 --server flag to redirect kubectl commands to an attacker-controlled API server, causing the operator's
 bearer token to be transmitted externally and enabling full cluster compromise. (CVE-2026-61459)

Solution

Update the mcp-server-kubernetes library and its related packages to version 3.9.0 or later.

See Also

https://github.com/advisories/GHSA-wmg3-h8mf-wgvr

Plugin Details

Severity: Critical

ID: 445926

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/13/2026

Updated: 8/13/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.14

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-61459

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/10/2026

Vulnerability Publication Date: 7/10/2026

Reference Information

CVE: CVE-2026-61459

cwe: CWE-88