{"id":"CVE-2026-46519","revision":"d0922f106f83445297aab72ef0a8fd80","records":[{"revision":"d0922f106f83445297aab72ef0a8fd80","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-46519","aliases":[],"title":"mcp-server-kubernetes Affected By Tool Access Control Bypass: Presentation-Layer Filtering Without Execution-Layer Enforcement","description":"mcp-server-kubernetes is a Model Context Protocol server for Kubernetes cluster management. Prior to version 3.6.0, mcp-server-kubernetes exposes three environment variables (ALLOW_ONLY_READONLY_TOOLS, ALLOW_ONLY_NON_DESTRUCTIVE_TOOLS, ALLOWED_TOOLS) documented as access controls for restricting which Kubernetes operations are available. These controls are enforced at the tool discovery layer (tools/list) but not at the execution layer (tools/call). Any client that knows a tool name can invoke it directly regardless of the configured restriction mode. The access control was effectively cosmetic. This issue has been patched in version 3.6.0.","state":0,"publishedAt":"2026-06-11T18:34:15.281+00:00","modifiedAt":"2026-06-11T19:40:22.771+00:00","affected":[{"ecosystem":"Vendor product","name":"mcp-server-kubernetes","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Flux159\",\n                    \"product\": \"mcp-server-kubernetes\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.6.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/Flux159/mcp-server-kubernetes/security/advisories/GHSA-cr22-wjx7-2w6m","https://github.com/Flux159/mcp-server-kubernetes/releases/tag/v3.6.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46519","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-46519","identifiers":["CVE-2026-46519"]},"retained":false,"historicalAffected":[]}],"coverage":[]}