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8.4 High

CVE-2026-82049 In CPython 3.13 and earlier, the tarfile module's data and tar extraction filters are vulnerable to crafted archives…

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.

Affected products and versions

Product Affected versions Fixed in
CPython 3.14 3.14.0a1 → < 3.14.0b1 3.14.0b1
CPython 3.13 3.13.0 → < 3.13.16 3.13.16
CPython 3.12 3.12.0 → < 3.12.15 3.12.15
CPython 3.11 3.11.0 → < 3.11.17 3.11.17
CPython 3.10 earliest → < 3.10.22 3.10.22

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