pip has an interpretation conflict due to handling both concatenated tar and ZIP files as ZIP files
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 software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | pip | < 26.1 | 26.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-3219
- https://github.com/pypa/pip/issues/13867
- https://github.com/pypa/pip/pull/13870
- https://github.com/pypa/pip
- https://mail.python.org/archives/list/security-announce@python.org/thread/QAJ5JIVWWCAJ4EZL2FP5MOOW35JS7LRJ
- http://www.openwall.com/lists/oss-security/2026/04/20/8
- https://pypi.org/project/pip
- https://github.com/advisories/GHSA-58qw-9mgm-455v
- CVSS 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- Weakness (CWE)
CWE-434- Platform
- Python (PyPI)
- Package
pip- Disclosed
- 20.04.2026
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-2875 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-58qw-9mgm-455v - CC BY 4.0
Vulnerability history: pip
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 13
- First → latest
- 08.2013 07.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 4
- Medium 8
- Low 1
Disclosures per year
- 2017: 0
- 2018: 0
- 2019: 1
- 2020: 1
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 5
earlier: 3
-
pip has an interpretation conflict due to handling both concatenated tar and ZIP files as ZIP files this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.