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.
No summary for this CVE yet.
Weaknesses
Affected Products
Python Packaging Authority
oss-projectaka pip
pipLibrary
OSS Libraries / pypiExploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
3 techniques Command and Control
Initial Access
Persistence
References
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