🛡️ CVE-2026-61459 — mcp-server-kubernetes

🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-88 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-61459 is classified as CWE-88: Argument Injection. Input is passed into a command line without separating data from options, letting an attacker introduce extra arguments.

Affected software

CVE-2026-61459 is recorded against 1 package.

  • mcp-server-kubernetes (fixed in 3.9.0)

Timeline and source

Published on 10 July 2026 and last revised on 17 July 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com
github.com
www.vulncheck.com

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-88
Public Exploit ⚠️ Yes
Source NVD
Published 2026-07-10
Updated 2026-08-11
Modified 2026-07-17

Affected Packages

Software From version Fixed in
mcp-server-kubernetes — 3.9.0

Similar Threats

Exploit Protection

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CVE-2026-61459 carries CVSS 9.8 Critical rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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