CVE-2026-61459

MCP Server Kubernetes

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.

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

Weakness

• CWE-88

References

• github.comPatch
• github.comIssue TrackingExploitVendor Advisory
• github.comIssue TrackingPatch
• github.comRelease Notes
• vulncheck.comThird Party Advisory

CVE-2026-61459 on NVD

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