CVE-2026-3219
pip doesn't reject concatenated ZIP and tar archives
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 4.6EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
20 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
Python Packaging Authority · pip