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CVE-2026-61459— MCP Server Kubernetes < 3.9.0 Argument Injection via kubectl Structured Tools

Quick assessment

Affected
Flux159 mcp-server-kubernetes
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flux159 mcp-server-kubernetes是Flux159个人开发者的 Flux159 mcp-server-kubernetes 3.9.0之前版本存在命令注入漏洞，该漏洞源于结构化工具（kubectl_get、kubectl_describe、kubectl_delete）存在参数注入漏洞，攻击者通过提供带有前导破折号的resourceType和name参数绕过assertNoDangerousFlags安全检查，注入--server标志将kubectl命令重定向到攻击者控制的API服

CVSS 9.8 · Critical EPSS 2.36% · P83

Public Exploits 1

ExploitDB · 1 EDB-52638 [remote]

Affected Version Matrix 1

VendorProduct Version RangeStatus
Flux159 mcp-server-kubernetes < 3.9.0 affected
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I. Basic Information for CVE-2026-61459

Vulnerability Information
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Vulnerability Title
MCP Server Kubernetes < 3.9.0 Argument Injection via kubectl Structured Tools
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
Flux159 mcp-server-kubernetes 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flux159 mcp-server-kubernetes是Flux159个人开发者的 Flux159 mcp-server-kubernetes 3.9.0之前版本存在命令注入漏洞，该漏洞源于结构化工具（kubectl_get、kubectl_describe、kubectl_delete）存在参数注入漏洞，攻击者通过提供带有前导破折号的resourceType和name参数绕过assertNoDangerousFlags安全检查，注入--server标志将kubectl命令重定向到攻击者控制的API服
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Flux159 mcp-server-kubernetes 0 ~ 3.9.0 -

II. Public POCs for CVE-2026-61459

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6773 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-61459

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Patches & Fixes for CVE-2026-61459 (2)

Vendor Advisories for CVE-2026-61459 (1)

Proof of Concept for CVE-2026-61459 (1)

Other References for CVE-2026-61459 (1)

IV. Related Vulnerabilities

Same product: mcp-server-kubernetes
Same vendor: Flux159
Same weakness: CWE-88

V. Comments for CVE-2026-61459

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