{"cve":"CVE-2026-3219","nvd":{"published":"2026-04-20T16:16:45.430","modified":"2026-10-26T22:10:00.163","status":"Awaiting Analysis","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.","cvss_v4":{"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","score":4.6},"cvss_v3":null,"cwes":["CWE-434"],"references":["https://github.com/pypa/pip/pull/13870","https://mail.python.org/archives/list/security-announce@python.org/thread/QAJ5JIVWWCAJ4EZL2FP5MOOW35JS7LRJ/","http://www.openwall.com/lists/oss-security/2026/04/20/8"],"products":[],"source":"nvd","synced_at":"2026-10-26T22:26:44.656832877+00:00"},"epss":{"cve":"CVE-2026-3219","score":0.00144,"percentile":0.03662,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-58qw-9mgm-455v","url":"https://osv.dev/vulnerability/GHSA-58qw-9mgm-455v","summary":"pip has an interpretation conflict due to handling both concatenated tar and ZIP files as ZIP files","modified":"2026-09-10T03:50:42.838011658Z","packages":[{"ecosystem":"PyPI","name":"pip","purl":"pkg:pypi/pip","ranges":["<26.1"],"fixed":["26.1"]}]},{"id":"PYSEC-2026-2875","url":"https://osv.dev/vulnerability/PYSEC-2026-2875","summary":"pip has an interpretation conflict due to handling both concatenated tar and ZIP files as ZIP files","modified":"2026-07-13T16:31:33.455648094Z","packages":[{"ecosystem":"PyPI","name":"pip","purl":"pkg:pypi/pip","ranges":["<26.1"],"fixed":["26.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}