{"id":"CVE-2026-49357","sourceIdentifier":"security-advisories@github.com","published":"2026-06-19T14:16:23.667","lastModified":"2026-10-26T11:10:00.157","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Line Desktop MCP es un proyecto que, aunque no está afiliado con el line-bot-mcp-server oficial, permite a los usuarios operar directamente la aplicación LINE Desktop en Windows o Mac a través de MCP. ’line-desktop-mcp’ soporta un transporte HTTP Streamable en modo ’--http-mode’ para su uso con clientes como n8n. En este modo, el servidor se enlaza a ’0.0.0.0’ y expone el endpoint MCP ’/mcp’ sin una verificación de autenticación a nivel de MCP. Antes de la versión 1.1.2, cualquier cliente de red que pueda alcanzar el puerto puede inicializar una sesión, listar herramientas y llamar a herramientas que leen el historial de chat de LINE Desktop o envían mensajes de LINE a través de la aplicación de escritorio ya iniciada. La versión 1.1.2 corrige el problema."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"dtwang","product":"line-desktop-mcp","versions":[{"version":"< 1.1.2","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-22T15:48:03.889588Z","id":"CVE-2026-49357","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-306"},{"lang":"en","value":"CWE-862"}]}],"references":[{"url":"https://github.com/dtwang/line-desktop-mcp/commit/680617894981ea93f8f6ceb51ecde7519754d501","source":"security-advisories@github.com"},{"url":"https://github.com/dtwang/line-desktop-mcp/security/advisories/GHSA-4hf8-5mjm-rfgq","source":"security-advisories@github.com"}]}