{"id":"CVE-2026-49357","revision":"ce7a1d94cf3944a5b05057f4656fc9b3","records":[{"revision":"ce7a1d94cf3944a5b05057f4656fc9b3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-49357","aliases":[],"title":"Streamable HTTP mode exposes LINE Desktop read/send tools without MCP authentication","description":"Line Desktop MCP is a project that, while unaffiliated with the official line-bot-mcp-server, allows users to directly operate the LINE Desktop application on Windows or Mac via MCP. `line-desktop-mcp` supports a `--http-mode` Streamable HTTP transport for use with clients such as n8n. In this mode the server binds to `0.0.0.0` and exposes the MCP `/mcp` endpoint without an MCP-layer authentication check. Prior to version 1.1.2, any network client that can reach the port can initialize a session, list tools, and call tools that read LINE Desktop chat history or send LINE messages through the already logged-in desktop application. Version 1.1.2 fixes the issue.","state":0,"publishedAt":"2026-06-19T13:11:08.386+00:00","modifiedAt":"2026-06-22T17:15:27.224+00:00","affected":[{"ecosystem":"Vendor product","name":"line-desktop-mcp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"dtwang\",\n                    \"product\": \"line-desktop-mcp\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.1.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":8.8,"severity":"HIGH"}],"references":["https://github.com/dtwang/line-desktop-mcp/security/advisories/GHSA-4hf8-5mjm-rfgq","https://github.com/dtwang/line-desktop-mcp/commit/680617894981ea93f8f6ceb51ecde7519754d501"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-49357","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-49357","identifiers":["CVE-2026-49357"]},"retained":false,"historicalAffected":[]}],"coverage":[]}