{"answers":{"affected":"3 open source packages ship an affected version, including emmett. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-39847 in the wild and no public exploit code.","fix":"Upgrade emmett to 2.8.1 or later.","what":"CVE-2026-39847 is a critical path traversal vulnerability in emmett-framework emmett, published on 7 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-2026-39847 and fix it if it is affected.\n\nWhat it is: CVE-2026-39847 is a critical path traversal vulnerability in emmett-framework emmett, published on 7 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-2026-39847 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- emmett (PyPI): affected from 2.5.0; fixed in 2.8.1\n- emmett (PyPI): affected from 2.5.0; fixed in 2.8.1\n- emmett (PyPI): affected from 2.5.0; fixed in 2.8.1\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-2026-39847/ (Markdown: https://insights.sbomify.com/CVE-2026-39847/index.md)","id":"CVE-2026-39847","markdown":"https://insights.sbomify.com/CVE-2026-39847/index.md","name":"CVE-2026-39847","record":{"aliases":["GHSA-pr46-2v3c-5356","PYSEC-2026-59"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Python web framework","requires_auth":"none","summary":"An attacker can read arbitrary files outside the assets directory via path traversal in the internal assets handler of the Emmett Python web framework.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"emmett","vendor":"emmett"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Emmett is a full-stack Python web framework designed with simplicity. From 2.5.0 to before 2.8.1, the RSGI static handler for Emmett's internal assets (/__emmett__ paths) is vulnerable to path traversal attacks. An attacker can use ../ sequences (eg /__emmett__/../rsgi/handlers.py) to read arbitrary files outside the assets directory. This vulnerability is fixed in 2.8.1.","ecosystems":["PyPI"],"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":"Emmett has a path traversal in internal assets handler","id":"CVE-2026-39847","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"Dockyard's Unauthenticated Cron Endpoint in Dockyard Enables Container Enumeration and Database Manipulation","id":"CVE-2026-39848"},"packages":[{"ecosystem":"PyPI","fixed":["2.8.1"],"introduced":["2.5.0"],"last_affected":[],"package":"emmett","purl":null,"source":"GHSA-pr46-2v3c-5356"},{"ecosystem":"PyPI","fixed":["2.8.1"],"introduced":["2.5.0"],"last_affected":[],"package":"emmett","purl":"pkg:pypi/emmett","source":"GHSA-pr46-2v3c-5356"},{"ecosystem":"PyPI","fixed":["2.8.1"],"introduced":["2.5.0"],"last_affected":[],"package":"emmett","purl":"pkg:pypi/emmett","source":"PYSEC-2026-59"}],"prev":{"headline":"SiYuan affected by Remote Code Execution in the Electron desktop client via stored XSS in synced table captions","id":"CVE-2026-39846"},"products":["emmett"],"published":"2026-04-07","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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2026-04-08","vendors":["emmett-framework"]},"summary":"An attacker can read arbitrary files outside the assets directory via path traversal in the internal assets handler of the Emmett Python web framework.","url":"https://insights.sbomify.com/CVE-2026-39847/"}