CVE-2026-3219
Medium
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.
SeverityMedium
CVSS4.6
Exploit probability—
ProductPip
PublishedApr 20, 2026
First seenApr 20, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Update
- pip26.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pipPyPI | v < 26.1 | 26.1 |
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