{"id":"CVE-2026-114583","summary":"tar filter allows writing outside destination via empty-named symlink","details":"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.","aliases":["BIT-libpython-2026-114583","BIT-python-2026-114583","BIT-python-min-2026-114583","PSF-2026-45"],"modified":"2026-11-10T10:45:59.300469129Z","published":"2026-10-22T20:57:36.019Z","related":["openSUSE-SU-2026:12348-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114583.json","cna_assigner":"PSF"},"references":[{"type":"WEB","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/43JOWPRAV5DI3VZ4FUEUAZOHCATXXOCK/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114583.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114583"},{"type":"REPORT","url":"https://github.com/python/cpython/issues/160097"},{"type":"FIX","url":"https://github.com/python/cpython/commit/04d8fca7da2cf3ebc0881fec8a53a1330c3b665d"},{"type":"FIX","url":"https://github.com/python/cpython/commit/0901ad4ffb22605f12b705d1c1197f0a01f0ba0b"},{"type":"FIX","url":"https://github.com/python/cpython/commit/bc93f8ad4c4a0f92d184ec8fccc8ff8a651dcec2"},{"type":"FIX","url":"https://github.com/python/cpython/commit/c6ada40177436e4e2533a7b252082b5f0c043477"},{"type":"FIX","url":"https://github.com/python/cpython/commit/e7e0b3523ad6ba8472873dda594cf4021a16f8b5"},{"type":"FIX","url":"https://github.com/python/cpython/commit/f4401da82e2baec5dab06cf070fbca77d53220f0"},{"type":"FIX","url":"https://github.com/python/cpython/pull/160098"},{"type":"PACKAGE","url":"https://github.com/python/cpython"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"26badd80b6dc7786cd8fb63c3608a31f04754219"},{"introduced":"0fb18b02c8ad56299d6a2910be0bab8ad601ef24"},{"fixed":"2c2462afc5d978d31f3d073001fc202d269917ff"},{"introduced":"60403a5409ff2c3f3b07dd2ca91a7a3e096839c7"},{"fixed":"0d4bd512fc429e3d4eacdd113c975e161f21644d"},{"introduced":"ebf955df7a89ed0c7968f79faec1de49f61ed7cb"},{"fixed":"b703b2c5e704341d61e367b9b940b77ed11dded0"},{"introduced":"d220409a13b77de7a6c30abe16ea90db01528edc"},{"fixed":"5e58eaad7c58df58dfa8ea549c87996e01dd1077"},{"introduced":"22d79d9840a275ed6ed36cd590dc74edc61765fb"},{"fixed":"22d79d9840a275ed6ed36cd590dc74edc61765fb"},{"fixed":"0901ad4ffb22605f12b705d1c1197f0a01f0ba0b"},{"fixed":"c6ada40177436e4e2533a7b252082b5f0c043477"},{"fixed":"e7e0b3523ad6ba8472873dda594cf4021a16f8b5"},{"fixed":"04d8fca7da2cf3ebc0881fec8a53a1330c3b665d"},{"fixed":"bc93f8ad4c4a0f92d184ec8fccc8ff8a651dcec2"},{"fixed":"f4401da82e2baec5dab06cf070fbca77d53220f0"}],"database_specific":{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"0"},{"fixed":"3.11.18"}],"source":"AFFECTED_FIELD"},{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"3.12.0"},{"fixed":"3.12.16"}]},{"range":[{"introduced":"3.13.0"},{"fixed":"3.13.18"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"},{"range":[{"introduced":"3.14.0"},{"fixed":"3.14.10"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"},{"range":[{"introduced":"3.15.0"},{"fixed":"3.15.2"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"},{"strategy":"StandardRange","range":[{"introduced":"3.16.0a1"},{"fixed":"3.16.0"}],"source":"AFFECTED_FIELD"},{"source":"REFERENCES_COMMIT","range":[{"fixed":"0901ad4ffb22605f12b705d1c1197f0a01f0ba0b"}]},{"source":"REFERENCES_COMMIT","range":[{"fixed":"c6ada40177436e4e2533a7b252082b5f0c043477"}]},{"range":[{"fixed":"e7e0b3523ad6ba8472873dda594cf4021a16f8b5"}],"source":"REFERENCES_COMMIT"},{"range":[{"fixed":"04d8fca7da2cf3ebc0881fec8a53a1330c3b665d"}],"source":"REFERENCES_COMMIT"},{"range":[{"fixed":"bc93f8ad4c4a0f92d184ec8fccc8ff8a651dcec2"}],"source":"REFERENCES_COMMIT"},{"range":[{"fixed":"f4401da82e2baec5dab06cf070fbca77d53220f0"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["v3.13.17","v3.14.9","v3.15.1","v3.15.0","v3.11.17","v3.12.15","v3.13.16","v3.14.8","v3.11.16","v3.12.14","v3.13.15","v3.14.7","v3.13.14","v3.14.6","v3.14.5","v3.15.0b1","v3.14.5rc1","v3.13.13","v3.14.4","v3.15.0a8","v3.15.0a7","v3.12.13","v3.11.15","v3.15.0a6","v3.13.12","v3.14.3","v3.15.0a5","v3.15.0a4","v3.15.0a3","v3.14.2","v3.13.11","v3.13.10","v3.14.1","v3.15.0a2","v3.15.0a1","v3.13.8","v3.11.14","v3.12.12","v3.14.0","v3.13.7","v3.13.6","v3.13.5","v3.13.4","v3.11.13","v3.12.11","v3.14.0b1","v3.13.3","v3.11.12","v3.12.10","v3.14.0a7","v3.14.0a6","v3.14.0a5","v3.13.2","v3.12.9","v3.14.0a4","v3.14.0a3","v3.13.1","v3.12.8","v3.11.11","v3.14.0a2","v3.14.0a1","v3.13.0","v3.12.7","v3.11.10","v3.12.6","v3.12.5","v3.12.4","v3.13.0b1","v3.13.0a6","v3.12.3","v3.11.9","v3.13.0a5","v3.13.0a4","v3.12.2","v3.11.8","v3.13.0a3","v3.12.1","v3.11.7","v3.13.0a2","v3.13.0a1","v3.11.6","v3.12.0","v3.11.5","v3.11.4","v3.12.0b1","v3.11.3","v3.12.0a7","v3.12.0a6","v3.11.2","v3.12.0a5","v3.12.0a4","v3.12.0a3","v3.11.1","v3.12.0a2","v3.12.0a1","v3.11.0rc2","v3.11.0rc1","v3.11.0b5","v3.11.0b4","v3.11.0b3","v3.11.0b2","v3.11.0b1","v3.11.0a7","v3.11.0a6","v3.11.0a5","v3.11.0a4","v3.11.0a3","v3.10.0a7","v3.10.0a1","v3.9.0a2","v3.7.0a2","v3.6.0b1","v3.6.0a3","v3.5.0b1","v3.5.0a4","v3.5.0a3","v3.5.0a2","v3.5.0a1","v3.4.0b3","v3.4.0b2","v3.4.0b1","v3.4.0a4","v3.4.0a3","v3.4.0a2","v3.4.0a1","v3.3.0rc3","v3.3.0rc2","v3.3.0rc1","v3.3.0b2","v3.3.0b1","v3.3.0a4","v3.3.0a3","v3.3.0a2","v3.2rc3","v3.2rc2","v3.2rc1","v3.2b2","v3.2b1","v3.2a4","v3.2a3","v3.2a2","v3.2a1","v3.1","v3.1rc2","v3.1rc1","v3.1b1","v3.1a2","v3.1a1","v3.0rc3","v3.0rc2","v3.0rc1","v3.0b3","v3.0b2","v3.0b1","v3.0a5","v3.0a4","v3.0a3","v3.0a2","v3.0a1","v2.4","v2.4c1","v2.4b2","v2.4b1","v2.4a3","v2.4a2","v2.4a1","v2.3c2","v2.3c1","v2.2a3","v2.1","v2.1c2","v2.1c1","v2.1b2","v2.1b1","v2.1a2","v2.1a1","v2.0","v2.0c1","v2.0b2","v2.0b1","v1.6a2","v1.6a1","v1.5.2","v1.5.2c1","v1.5.2b2","v1.5.2b1","v1.5.2a2","v1.5.2a1","v1.5.1","v1.5","v1.5b2","v1.5b1","v1.5a4","v1.5a3","v1.5a2","v1.5a1","v1.4","v1.4b3","v1.4b2","v1.4b1","v1.3","v1.3b1","v1.2","v1.2b4","v1.2b3","v1.2b2","v1.2b1","v1.1.1","v1.1","v1.0.2","v1.0.1","v0.9.9","v0.9.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114583.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"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"}]}