High severityNVD Advisory· Published Sep 14, 2026· Updated Oct 11, 2026
CVE-2026-82049
CVE-2026-82049
Description
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.
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Affected products
10(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=3.13
- osv-coords8 versionspkg:bitnami/libpythonpkg:bitnami/pythonpkg:bitnami/python-minpkg:rpm/opensuse/python310&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python311&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python312&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python313&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python315&distro=openSUSE%20Tumbleweed
< 3.10.22+ 7 more
- (no CPE)range: < 3.10.22
- (no CPE)range: < 3.10.22
- (no CPE)range: < 3.10.22
- (no CPE)range: < 3.10.22-1.1
- (no CPE)range: < 3.11.17-1.1
- (no CPE)range: < 3.12.15-1.1
- (no CPE)range: < 3.13.16-1.1
- (no CPE)range: < 3.15.0~rc3-1.1
Patches
Vulnerability mechanics
References
12- www.openwall.com/lists/oss-security/2026/09/14/27nvd
- github.com/python/cpython/commit/197663d63afed27f66e10e23c194e8a634e60913nvd
- github.com/python/cpython/commit/28f315486b3da0352b9a1de1c3c97f4127ba4771nvd
- github.com/python/cpython/commit/5a57248b22ad3b9aafcaaadae2c304a1923daecanvd
- github.com/python/cpython/commit/b38be2e6cf9d989075ab73412c63e003ebad4ff3nvd
- github.com/python/cpython/commit/b8f23e307097552eaea2604383a12ab280520d0dnvd
- github.com/python/cpython/commit/c66df4e70435d257fd488b35ea129c6f317433a8nvd
- github.com/python/cpython/commit/cc1689830c6b9aaddded2fb9f2fe8116867e2c0envd
- github.com/python/cpython/commit/cccc7ec30212dba2abef53ce4a2bed112ddb690cnvd
- github.com/python/cpython/issues/157190nvd
- github.com/python/cpython/pull/157191nvd
- mail.python.org/archives/list/[email protected]/thread/EFJWGAZJA56AKSBR2WHMHQZO7RRLZPRH/nvd
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