CVE-2026-82049
tarfile extraction filters allow file modification and content disclosure via hard link to symlink
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.
No summary for this CVE yet.
Weaknesses
Affected Products
Python Software Foundation
oss-project·USaka psf
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Attack Graph
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MITRE ATT&CK
2 techniques Collection
Discovery
References
https://github.com/python/cpython/commit/5a57248b22ad3b9aafcaaadae2c304a1923daeca
github.com
https://github.com/python/cpython/issues/157190
github.com
https://github.com/python/cpython/pull/157191
github.com
and 4 more references View all →
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