{"answers":{"affected":"2 open source packages ship an affected version, including @fastify/static. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-6414 in the wild and no public exploit code.","fix":"Upgrade @fastify/static to 9.1.1 or later.","what":"CVE-2026-6414 is a medium-severity vulnerability in @fastify/static, published on 16 Apr 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-2026-6414 and fix it if it is affected.\n\nWhat it is: CVE-2026-6414 is a medium-severity vulnerability in @fastify/static, published on 16 Apr 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-2026-6414 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @fastify/static (npm): affected from 8.0.0; fixed in 9.1.1\n- @fastify/static (npm): affected from 8.0.0; fixed in 9.1.1\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-2026-6414/ (Markdown: https://insights.sbomify.com/CVE-2026-6414/index.md)","id":"CVE-2026-6414","markdown":"https://insights.sbomify.com/CVE-2026-6414/index.md","name":"CVE-2026-6414","record":{"aliases":["GHSA-x428-ghpx-8j92","MINI-r7q9-h4q3-pgj5"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Fastify static file plugin","requires_auth":"none","summary":"Attackers can bypass route guards protecting static files by using encoded path separators, requiring an upgrade to the @fastify/static library.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"openjs","cpe":[{"product":"fastify-static","vendor":"fastify"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-177","name":"Improper Handling of URL Encoding (Hex Encoding)"}],"description":"@fastify/static versions 8.0.0 through 9.1.0 decode percent-encoded path separators (%2F) before filesystem resolution, while Fastify's router treats them as literal characters. This mismatch allows attackers to bypass route-based middleware or guards that protect files served by @fastify/static. For example, a route guard on a protected path can be circumvented by encoding the path separator in the URL. Upgrade to @fastify/static 9.1.1 to fix this issue. There are no workarounds.","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":"@fastify/static vulnerable to route guard bypass via encoded path separators","id":"CVE-2026-6414","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"Cross-site scripting in Advanced Custom Fields: Font Awesome Field","id":"CVE-2026-6415"},"packages":[{"ecosystem":"npm","fixed":["9.1.1"],"introduced":["8.0.0"],"last_affected":[],"package":"@fastify/static","purl":null,"source":"GHSA-x428-ghpx-8j92"},{"ecosystem":"npm","fixed":["9.1.1"],"introduced":["8.0.0"],"last_affected":[],"package":"@fastify/static","purl":"pkg:npm/%40fastify/static","source":"GHSA-x428-ghpx-8j92"}],"prev":{"headline":"Continued acceptance of SHA-1/MD5 digests in certificate processing","id":"CVE-2026-6412"},"products":["@fastify/static"],"published":"2026-04-16","related":[{"cvss_score":8.8,"headline":"DOS and Open Redirect with user input","id":"CVE-2021-22964","kev_date_added":null,"published":"2021-10-14"},{"cvss_score":7.5,"headline":"@fastify/static vulnerable to route guard bypass via non-canonical path segments","id":"CVE-2026-18427","kev_date_added":null,"published":"2026-08-06"},{"cvss_score":7.5,"headline":"@fastify/static vulnerable to route guard bypass via path traversal","id":"CVE-2026-15074","kev_date_added":null,"published":"2026-07-23"},{"cvss_score":6.1,"headline":"URL Redirection to Untrusted Site ('Open Redirect') in fastify-static","id":"CVE-2021-22963","kev_date_added":null,"published":"2021-10-14"},{"cvss_score":5.3,"headline":"@fastify/static vulnerable to Authorization Bypass via Non-Canonical URL Paths","id":"CVE-2026-7120","kev_date_added":null,"published":"2026-07-23"},{"cvss_score":5.3,"headline":"@fastify/static vulnerable to path traversal in directory listing","id":"CVE-2026-6410","kev_date_added":null,"published":"2026-04-16"}],"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":"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-16","vendors":["@fastify/static"]},"summary":"Attackers can bypass route guards protecting static files by using encoded path separators, requiring an upgrade to the @fastify/static library.","url":"https://insights.sbomify.com/CVE-2026-6414/"}