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CVE-2026-3219 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  Python Software Foundation
CVSS-B 4.6 MEDIUM
Vector:  CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-security/2026/04/20/8 CVE
https://github.com/pypa/pip/pull/13870 Python Software Foundation
https://mail.python.org/archives/list/[email protected]/thread/QAJ5JIVWWCAJ4EZL2FP5MOOW35JS7LRJ/ Python Software Foundation

Weakness Enumeration

CWE-ID CWE Name Source
CWE-434 Unrestricted Upload of File with Dangerous Type CISA-ADP  

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-3219
NVD Published Date:
04/20/2026
NVD Last Modified:
04/20/2026
Source:
Python Software Foundation