{"answers":{"affected":"2 open source packages ship an affected version, including line-desktop-mcp.","exploited":"There is no known exploitation of CVE-2026-49357 in the wild and no public exploit code.","fix":"Upgrade line-desktop-mcp to 1.1.2 or later.","what":"CVE-2026-49357 is a high-severity missing authorization vulnerability in dtwang line-desktop-mcp, published on 19 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-49357 and fix it if it is affected.\n\nWhat it is: CVE-2026-49357 is a high-severity missing authorization vulnerability in dtwang line-desktop-mcp, published on 19 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-49357 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- line-desktop-mcp (npm): affected all versions; fixed in 1.1.2\n- line-desktop-mcp (npm): affected all versions; fixed in 1.1.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-49357/ (Markdown: https://insights.sbomify.com/CVE-2026-49357/index.md)","id":"CVE-2026-49357","markdown":"https://insights.sbomify.com/CVE-2026-49357/index.md","name":"CVE-2026-49357","record":{"aliases":["GHSA-4hf8-5mjm-rfgq"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"LINE Desktop MCP server","requires_auth":"none","summary":"Attackers can read chat history and send messages via LINE Desktop when using the unauthenticated Streamable HTTP mode.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"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.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Streamable HTTP mode exposes LINE Desktop read/send tools without MCP authentication","id":"CVE-2026-49357","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"PhpWeasyPrint vulnerable to arbitrary file deletion at shutdown via public $temporaryFiles","id":"CVE-2026-49358"},"packages":[{"ecosystem":"npm","fixed":["1.1.2"],"introduced":["0"],"last_affected":[],"package":"line-desktop-mcp","purl":null,"source":"GHSA-4hf8-5mjm-rfgq"},{"ecosystem":"npm","fixed":["1.1.2"],"introduced":["0"],"last_affected":[],"package":"line-desktop-mcp","purl":"pkg:npm/line-desktop-mcp","source":"GHSA-4hf8-5mjm-rfgq"}],"prev":{"headline":"Babel: Arbitrary File Read via sourceMappingURL Comment in @babel/core","id":"CVE-2026-49356"},"products":["line-desktop-mcp"],"published":"2026-06-19","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-22","vendors":["dtwang"]},"summary":"Attackers can read chat history and send messages via LINE Desktop when using the unauthenticated Streamable HTTP mode.","url":"https://insights.sbomify.com/CVE-2026-49357/"}