{"id":"CVE-2026-114583","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-114583","generatedAt":"2026-10-28T01:52:46.563Z","title":"tarfile.tar_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory.","description":"tarfile.tar_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() with filter=\"tar\" to write files outside the destination directory, subject to the permissions of the extracting process.\n\nThis is the tarfile.tar_filter counterpart of CVE-2026-7774, which covered tarfile.data_filter.","published":"2026-10-22T21:17:17.000Z","lastModified":"2026-10-27T01:19:05.000Z","status":"Awaiting Analysis","sourceIdentifier":"cna@python.org","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":[],"affected":[],"epss":{"score":0.00227,"percentile":0.13343,"date":"2026-10-26","history":[{"date":"2026-10-23","score":0.00207,"percentile":0.10254}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-22T21:17:17.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-10-22T21:17:16.543Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/python/cpython/commit/04d8fca7da2cf3ebc0881fec8a53a1330c3b665d","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/0901ad4ffb22605f12b705d1c1197f0a01f0ba0b","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/bc93f8ad4c4a0f92d184ec8fccc8ff8a651dcec2","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/c6ada40177436e4e2533a7b252082b5f0c043477","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/e7e0b3523ad6ba8472873dda594cf4021a16f8b5","source":"cna@python.org"},{"url":"https://github.com/python/cpython/commit/f4401da82e2baec5dab06cf070fbca77d53220f0","source":"cna@python.org"},{"url":"https://github.com/python/cpython/issues/160097","source":"cna@python.org"},{"url":"https://github.com/python/cpython/pull/160098","source":"cna@python.org"},{"url":"https://mail.python.org/archives/list/security-announce@python.org/thread/43JOWPRAV5DI3VZ4FUEUAZOHCATXXOCK/","source":"cna@python.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-114583","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}