{"cve":"CVE-2026-82049","nvd":{"published":"2026-09-14T19:17:50.927","modified":"2026-10-11T01:16:25.820","status":"Awaiting Analysis","description":"In CPython 3.13 and earlier, the tarfile module's data and tar extraction filters are vulnerable to crafted archives containing a hard link to a symbolic link. Such archives may cause extraction to modify the permissions or modification time of a file outside the destination directory, or expose the contents of that file within the extracted tree.","cvss_v4":{"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.4},"cvss_v3":null,"cwes":["CWE-59"],"references":["https://github.com/python/cpython/commit/197663d63afed27f66e10e23c194e8a634e60913","https://github.com/python/cpython/commit/28f315486b3da0352b9a1de1c3c97f4127ba4771","https://github.com/python/cpython/commit/5a57248b22ad3b9aafcaaadae2c304a1923daeca","https://github.com/python/cpython/commit/b38be2e6cf9d989075ab73412c63e003ebad4ff3","https://github.com/python/cpython/commit/b8f23e307097552eaea2604383a12ab280520d0d"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-82049","score":0.00188,"percentile":0.08299,"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."]}