CVE Watch28 ago 2026

CVE-2026-19672

The tarfile module's tar and data extraction filters created directories outside the destination for members whose name leaves the destina

CVSS

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Sin CVSS

EPSS

0.4%

p35

KEV

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Exploit Today

0-100

Publicado: 19 ago 2026 · Última mod.: 28 ago 2026 · CWE-22

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-08-262026-09-23

Descripción técnica

The tarfile module's tar and data extraction filters created directories outside the destination for members whose name leaves the destination and returns to it, such as ../evil/../dest/sub/file. The containment check used the resolved path, but intermediate directories were created from the name as given. Only empty directories are created outside the destination. Member contents are still extracted inside it. To return to the destination the member's name must contain the destination directory's own final component, so extraction into a secure randomised directory is not affected. This affects POSIX platforms only. On Windows, .. components are collapsed before the path reaches the filesystem, so the directories outside the destination are never created.

Referencias oficiales

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