{"cve":"CVE-2026-13346","nvd":{"published":"2026-07-29T19:16:44.267","modified":"2026-10-24T13:10:00.147","status":"Analyzed","description":"pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.\n\n\n\n\nThis vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":5.6},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","score":6.5},"cwes":["CWE-36"],"references":["https://github.com/pypa/pip/pull/14110","https://mail.python.org/archives/list/security-announce@python.org/thread/L2BNQGGVQCEV7DROOORQ7WFKKFF2OOQX/","http://www.openwall.com/lists/oss-security/2026/07/29/7"],"products":["pypa:pip"],"source":"nvd","synced_at":"2026-10-24T16:53:27.712498749+00:00"},"epss":{"cve":"CVE-2026-13346","score":0.00292,"percentile":0.2159,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-qwm4-qh6w-59xr","url":"https://osv.dev/vulnerability/GHSA-qwm4-qh6w-59xr","summary":"pip would incorrectly handle doubly-encoded package URLs from indexes","modified":"2026-09-10T03:50:52.923367736Z","packages":[{"ecosystem":"PyPI","name":"pip","purl":"pkg:pypi/pip","ranges":["<26.2.0"],"fixed":["26.2.0"]}]},{"id":"PYSEC-2026-3721","url":"https://osv.dev/vulnerability/PYSEC-2026-3721","summary":"","modified":"2026-09-10T11:15:08.939447160Z","packages":[{"ecosystem":"PyPI","name":"pip","purl":"pkg:pypi/pip","ranges":["<26.2"],"fixed":["26.2"]}]}],"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."]}