{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-29509 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-29509 is a medium-severity path traversal vulnerability in wummel patool, published on 26 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-29509 and fix it if it is affected.\n\nWhat it is: CVE-2026-29509 is a medium-severity path traversal vulnerability in wummel patool, published on 26 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-29509 in the wild and no public exploit code.\n\nAffected product: wummel patool. 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-2026-29509/ (Markdown: https://insights.sbomify.com/CVE-2026-29509/index.md)","id":"CVE-2026-29509","markdown":"https://insights.sbomify.com/CVE-2026-29509/index.md","name":"CVE-2026-29509","record":{"aliases":["DEBIAN-CVE-2026-29509","GHSA-p95f-9f9h-wwvh","MGASA-2026-0504","UBUNTU-CVE-2026-29509"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Python archive library","requires_auth":"none","summary":"Attackers can write arbitrary files via malicious archives due to flawed path validation in Patool's extraction function.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/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":"Patool before 4.0.5 contains a path traversal vulnerability in the safe_extract() function in patoolib/programs/py_tarfile.py when running on Python before 3.12, where the is_within_directory() helper uses os.path.commonprefix() for character-level string comparison instead of path-level comparison, allowing a crafted archive member path to bypass the containment check. Attackers can supply a malicious archive with specially crafted member paths to write arbitrary files.","ecosystems":[],"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":"Patool \u003c 4.0.5 Path Traversal via safe_extract() Function","id":"CVE-2026-29509","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Hereta ETH-IMC408M Stored XSS via Device Name","id":"CVE-2026-29510"},"packages":[],"prev":{"headline":"Apache OFBiz: Low-Privilege SSRF in Content Component","id":"CVE-2026-29226"},"products":["patool"],"published":"2026-06-26","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-14","vendors":["wummel"]},"summary":"Attackers can write arbitrary files via malicious archives due to flawed path validation in Patool's extraction function.","url":"https://insights.sbomify.com/CVE-2026-29509/"}