VULNERABILITY INTELLIGENCE

CVE-2026-61459

CVSS score9.8 CRITICAL

EPSS probability2.36%

CISA KEVNot currently listed

Published2026-07-10

Last modified2026-10-25

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

disclosure@vulncheck.com: CWE-88

Primary references

disclosure@vulncheck.com — Patch
disclosure@vulncheck.com — Issue Tracking, Exploit, Mitigation, Vendor Advisory
disclosure@vulncheck.com — Issue Tracking, Patch
disclosure@vulncheck.com — Release Notes
disclosure@vulncheck.com — Third Party Advisory