{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10278 exists.","fix":"No fix has been published for CVE-2026-10278 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-10278 is a medium-severity path traversal vulnerability in ishayoyo excel-mcp, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-10278 and fix it if it is affected.\n\nWhat it is: CVE-2026-10278 is a medium-severity path traversal vulnerability in ishayoyo excel-mcp, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10278 exists.\n\nAffected product: ishayoyo excel-mcp. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-10278/ (Markdown: https://insights.sbomify.com/CVE-2026-10278/index.md)","id":"CVE-2026-10278","markdown":"https://insights.sbomify.com/CVE-2026-10278/index.md","name":"CVE-2026-10278","record":{"aliases":["GHSA-vgmg-2m2p-qqqj"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Excel MCP library","requires_auth":"low_privilege","summary":"Remote attackers can exploit path traversal in the excel-mcp library to read or modify arbitrary files via manipulated file path arguments.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"A vulnerability was determined in ishayoyo excel-mcp up to 1.0.2. Impacted is an unknown function of the file src/index.ts of the component read_file/write_file. Executing a manipulation of the argument filePath/outputPath can lead to path traversal. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"ishayoyo excel-mcp read_file/write_file index.ts path traversal","id":"CVE-2026-10278","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"hiraishikentaro wezterm-mcp switch_pane/write_to_specific_pane wezterm_executor.ts os command injection","id":"CVE-2026-10279"},"packages":[],"prev":{"headline":"j3k0 mcp-google-workspace MCP Gmail Tool gmail.ts saveToDisk access control","id":"CVE-2026-10277"},"products":["excel-mcp"],"published":"2026-06-01","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-02","vendors":["ishayoyo"]},"summary":"Remote attackers can exploit path traversal in the excel-mcp library to read or modify arbitrary files via manipulated file path arguments.","url":"https://insights.sbomify.com/CVE-2026-10278/"}