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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-82049US | — | — | ||
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 ca… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/python/cpython/commit/197663d63afed27f66e10e23c194e8a634e60913FIX
- https://github.com/python/cpython/commit/28f315486b3da0352b9a1de1c3c97f4127ba4771FIX
- https://github.com/python/cpython/commit/5a57248b22ad3b9aafcaaadae2c304a1923daecaFIX
- https://github.com/python/cpython/commit/b38be2e6cf9d989075ab73412c63e003ebad4ff3FIX
- https://github.com/python/cpython/commit/b8f23e307097552eaea2604383a12ab280520d0dFIX
- https://github.com/python/cpython/commit/c66df4e70435d257fd488b35ea129c6f317433a8FIX
- https://github.com/python/cpython/commit/cc1689830c6b9aaddded2fb9f2fe8116867e2c0eFIX
- https://github.com/python/cpython/commit/cccc7ec30212dba2abef53ce4a2bed112ddb690cFIX
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