{"answers":{"affected":"3 open source packages ship an affected version, including github.com/googleapis/mcp-toolbox. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-11720 in the wild and no public exploit code.","fix":"Upgrade github.com/googleapis/mcp-toolbox to 1.3.0 or later.","what":"CVE-2026-11720 is a critical path traversal vulnerability in MCP Toolbox for Databases (googleapis/mcp-toolbox), published on 29 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-2026-11720 and fix it if it is affected.\n\nWhat it is: CVE-2026-11720 is a critical path traversal vulnerability in MCP Toolbox for Databases (googleapis/mcp-toolbox), published on 29 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-2026-11720 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/googleapis/mcp-toolbox (Go): affected all versions; fixed in 1.3.0\n- github.com/googleapis/mcp-toolbox (Go): affected all versions; fixed in 1.3.0\n- github.com/googleapis/mcp-toolbox (Go): affected all versions; fixed in 1.3.0\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-2026-11720/ (Markdown: https://insights.sbomify.com/CVE-2026-11720/index.md)","id":"CVE-2026-11720","markdown":"https://insights.sbomify.com/CVE-2026-11720/index.md","name":"CVE-2026-11720","record":{"aliases":["GHSA-vwxw-jrg6-9jxv","GO-2026-6411"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"MCP Toolbox library","requires_auth":"none","summary":"Attackers can use path traversal in URL construction to access unauthorized endpoints and leak credentials on the target host.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Google","cpe":[{"product":"mcp_toolbox_for_databases","vendor":"google"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"A path traversal vulnerability exists in the HTTP tool URL builder of googleapis/mcp-toolbox.\n\nWhen constructing downstream API requests, the URL builder substitutes user-controlled pathParams into the configured tool path and parses the resulting string as a relative URL. While it checks that the input does not alter the scheme, host, or user info, it relies on ResolveReference for the final URL resolution. Because dot segments (../) are normalized during this resolution step, an attacker can supply path parameters containing directory traversal sequences to escape the operator-configured path scope. This allows the client to coerce the toolbox into making requests to unintended endpoints on the same target host while forwarding the toolbox's configured credentials (e.g., bypassing a restricted path like /api/v1/users/{{.id}} to reach /admin/secrets).","ecosystems":["Go"],"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":"Path Traversal in googleapis/mcp-toolbox HTTP Tool URL Builder","id":"CVE-2026-11720","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"Cache poisoning possible with label count discrepancy, RRSIG, and wildcards","id":"CVE-2026-11721"},"packages":[{"ecosystem":"Go","fixed":["1.3.0"],"introduced":["0"],"last_affected":[],"package":"github.com/googleapis/mcp-toolbox","purl":null,"source":"GHSA-vwxw-jrg6-9jxv"},{"ecosystem":"Go","fixed":["1.3.0"],"introduced":["0"],"last_affected":[],"package":"github.com/googleapis/mcp-toolbox","purl":"pkg:golang/github.com/googleapis/mcp-toolbox","source":"GHSA-vwxw-jrg6-9jxv"},{"ecosystem":"Go","fixed":["1.3.0"],"introduced":["0"],"last_affected":[],"package":"github.com/googleapis/mcp-toolbox","purl":"pkg:golang/github.com/googleapis/mcp-toolbox","source":"GO-2026-6411"}],"prev":{"headline":"MCP Toolbox for Databases: authenticated authorization bypass","id":"CVE-2026-11719"},"products":["MCP Toolbox for Databases (googleapis/mcp-toolbox)"],"published":"2026-06-29","related":[{"cvss_score":9.3,"headline":"googleapis/mcp-toolbox: authentication bypass vulnerability in the generic opaque token validation path (validateOpaqueToken)","id":"CVE-2026-11717","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":9.3,"headline":"googleapis/mcp-toolbox: authentication bypass vulnerability in the generic opaque token validation path (validateOpaqueToken)","id":"CVE-2026-11718","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":8.6,"headline":"SQL Injection and Security Boundary Bypass in googleapis/mcp-toolbox","id":"CVE-2026-15829","kev_date_added":null,"published":"2026-07-21"},{"cvss_score":8.6,"headline":"MCP Toolbox for Databases: authenticated authorization bypass","id":"CVE-2026-11719","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":8.1,"headline":"Authorization Bypass in MCP Toolbox Legacy HTTP Endpoints","id":"CVE-2026-14537","kev_date_added":null,"published":"2026-07-31"},{"cvss_score":8,"headline":"Server-Side Request Forgery via Unrestricted HTTP Redirection in MCP Toolbox","id":"CVE-2026-14540","kev_date_added":null,"published":"2026-07-31"}],"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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"total"},"state":"PUBLISHED","updated":"2026-06-29","vendors":["Google"]},"summary":"Attackers can use path traversal in URL construction to access unauthorized endpoints and leak credentials on the target host.","url":"https://insights.sbomify.com/CVE-2026-11720/"}