{"cve":"CVE-2025-71359","nvd":{"published":"2026-07-04T02:16:22.197","modified":"2026-10-12T21:10:00.227","status":"Deferred","description":"picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":7.6},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-502"],"references":["https://github.com/mmaitre314/picklescan/security/advisories/GHSA-f54q-57x4-jg88","https://www.vulncheck.com/advisories/picklescan-unsafe-deserialization-via-lib2to3-pgen2-grammar-grammar-loads","https://github.com/mmaitre314/picklescan/security/advisories/GHSA-f54q-57x4-jg88"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:42:16.820116992+00:00"},"epss":{"cve":"CVE-2025-71359","score":0.00613,"percentile":0.49058,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-f54q-57x4-jg88","url":"https://osv.dev/vulnerability/GHSA-f54q-57x4-jg88","summary":"Picklescan has a missing detection when calling built-in python lib2to3.pgen2.grammar.Grammar.loads","modified":"2026-07-08T07:23:52.564292531Z","packages":[{"ecosystem":"PyPI","name":"picklescan","purl":"pkg:pypi/picklescan","ranges":["<0.0.29"],"fixed":["0.0.29"]}]}],"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."]}