{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81486 exists.","fix":"No fix has been published for CVE-2026-81486 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-81486 is a medium-severity path traversal vulnerability in bsmi021 mcp-file-context-server, published on 27 Aug 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-2026-81486 and fix it if it is affected.\n\nWhat it is: CVE-2026-81486 is a medium-severity path traversal vulnerability in bsmi021 mcp-file-context-server, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81486 exists.\n\nAffected product: bsmi021 mcp-file-context-server. 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-2026-81486/ (Markdown: https://insights.sbomify.com/CVE-2026-81486/index.md)","id":"CVE-2026-81486","markdown":"https://insights.sbomify.com/CVE-2026-81486/index.md","name":"CVE-2026-81486","record":{"aliases":["GHSA-r93x-r7qx-vp33"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"MCP file context server","requires_auth":"none","summary":"Attackers can exploit path traversal in the read_context function to read arbitrary files from the server.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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 detected in bsmi021 mcp-file-context-server 1.0.0. Affected by this issue is the function read_context of the file src/index.ts of the component Path Resolution. Performing a manipulation of the argument path results in path traversal. It is possible to initiate the attack remotely. The exploit is now public and may be used. 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":"bsmi021 mcp-file-context-server Path Resolution index.ts read_context path traversal","id":"CVE-2026-81486","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":"MongoDB Connector for BI Improper Error Handling During Schema Sampling May Cause Loss of SQL Service","id":"CVE-2026-81490"},"packages":[],"prev":{"headline":"danielpopamd linkedin-ads-mcp Media Upload campaign-management.ts fs.readFileSync path traversal","id":"CVE-2026-81485"},"products":["mcp-file-context-server"],"published":"2026-08-27","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-27","vendors":["bsmi021"]},"summary":"Attackers can exploit path traversal in the read_context function to read arbitrary files from the server.","url":"https://insights.sbomify.com/CVE-2026-81486/"}