{"cve":"CVE-2026-4360","nvd":{"published":"2026-06-30T15:16:57.193","modified":"2026-10-25T21:10:00.770","status":"Modified","description":"In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":2.0},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-281"],"references":["https://github.com/python/cpython/commit/0367912be336348b30572f8029cec4a282782d92","https://github.com/python/cpython/commit/5e0ef3f1afe892e4f64eb83368db57ac4c40cba0","https://github.com/python/cpython/commit/7b57e8d51446297b8c7c482d224bc5f1938e4301","https://github.com/python/cpython/commit/7ccdbaba2c54250a70d7f25632152df7655a5e0a","https://github.com/python/cpython/commit/cf23b9153181062150d061468b6d24af33fe214f"],"products":["python:python"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-4360","score":0.00481,"percentile":0.41165,"date":"2026-10-25"},"kev":null,"osv":[],"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."]}