{"affected":[{"package":{"ecosystem":"Bitnami","name":"libpython","purl":"pkg:bitnami/libpython"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"3.14.0"}],"type":"SEMVER"}],"severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","type":"CVSS_V4"}]}],"aliases":["CVE-2026-82049"],"database_specific":{"cpes":["cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"],"severity":"High"},"details":"In CPython 3.13 and earlier, the tarfile module's data and tar extraction filters are vulnerable to crafted archives containing a hard link to a symbolic link. Such archives may cause extraction to modify the permissions or modification time of a file outside the destination directory, or expose the contents of that file within the extracted tree.","id":"BIT-libpython-2026-82049","modified":"2026-09-21T09:26:48.669Z","published":"2026-09-21T09:00:11.991Z","references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/09/14/27"},{"type":"WEB","url":"https://github.com/python/cpython/commit/5a57248b22ad3b9aafcaaadae2c304a1923daeca"},{"type":"WEB","url":"https://github.com/python/cpython/commit/b38be2e6cf9d989075ab73412c63e003ebad4ff3"},{"type":"WEB","url":"https://github.com/python/cpython/commit/b8f23e307097552eaea2604383a12ab280520d0d"},{"type":"WEB","url":"https://github.com/python/cpython/issues/157190"},{"type":"WEB","url":"https://github.com/python/cpython/pull/157191"},{"type":"WEB","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/EFJWGAZJA56AKSBR2WHMHQZO7RRLZPRH/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82049"}],"schema_version":"1.6.2","summary":"tarfile extraction filters allow file modification and content disclosure via hard link to symlink"}