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CVE-2026-49357

CVE-2026-49357 · Streamable HTTP mode exposes LINE Desktop read/send tools without MCP authentication

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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.

CVSS 8.8 · Élevée · EPSS 0,6% · Correctif disponible

Publication
Mise à jour

Pile logicielle: node

Produits et versions concernés

  • line-desktop-mcp

    Versions du logiciel
    • < 1.1.2: Concernée

    Aucun correctif publié

  • line-desktop-mcp npm

    Plages de versions concernées
    • SEMVER: < 1.1.2

    Mettez à jour vers 1.1.2

Sources originales

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