Incorrect Authorization Affecting mcp-server-kubernetes package, versions <3.6.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published23 Jun 2026
- disclosed21 May 2026
- credit0xmagic0
Introduced: 21 May 2026
CVE-2026-46519 (opens in a new tab)How to fix?
Upgrade mcp-server-kubernetes to version 3.6.0 or higher.
Overview
mcp-server-kubernetes is a MCP server for interacting with Kubernetes clusters via kubectl
Affected versions of this package are vulnerable to Incorrect Authorization through the CallTool handler in src/index.ts. An attacker can invoke disallowed Kubernetes tools and perform destructive operations by sending a direct tools/call request for a restricted tool name, even when that tool is omitted from tools/list under ALLOW_ONLY_READONLY_TOOLS, ALLOW_ONLY_NON_DESTRUCTIVE_TOOLS, or ALLOWED_TOOLS. This allows a client that knows or guesses a restricted tool name to reach the underlying Kubernetes operation path and execute actions that the server was meant to block.