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CVE PROGRAM SOURCE RECORD4.6 Medium

CVE-2026-3219

pip doesn't reject concatenated ZIP and tar archives

Description

pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether a file is both a tar and ZIP file. This behavior could result in confusing installation behavior, such as installing "incorrect" files according to the filename of the archive. New behavior only proceeds with installation if the file identifies uniquely as a ZIP or tar archive, not as both.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Python Packaging Authority pip

Default version status: unaffected

  • 0 to < 26.1affected

References