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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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… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/python/cpython/commit/5a57248b22ad3b9aafcaaadae2c304a1923daecaFIX
- https://github.com/python/cpython/issues/157190REPORT
- https://github.com/python/cpython/pull/157191WEB
- https://mail.python.org/archives/list/security-announce@python.org/thread/EFJWGAZJA56AKSBR2WHMHQZO7RRLZPRH/ADVISORY
scry
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