{"cve":"CVE-2026-56315","nvd":{"published":"2026-06-23T13:16:45.770","modified":"2026-06-23T14:52:58.543","status":"Deferred","description":"picklescan before 1.0.4 fails to block at least seven Python standard library modules (including uuid, _osx_support, _aix_support, _pyrepl.pager, and imaplib) exposing eight functions that provide direct arbitrary command execution. Attackers can craft malicious pickle files importing these unblocked modules to achieve remote code execution while bypassing picklescan's safety validation entirely.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-184"],"references":["https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g38g-8gr9-h9xp","https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-unblocked-standard-library-modules","https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g38g-8gr9-h9xp"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:39:28.638635428+00:00"},"epss":{"cve":"CVE-2026-56315","score":0.01147,"percentile":0.66793,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-g38g-8gr9-h9xp","url":"https://osv.dev/vulnerability/GHSA-g38g-8gr9-h9xp","summary":"PickleScan has multiple stdlib modules with direct RCE not in blocklist","modified":"2026-10-01T17:56:11.135756115Z","packages":[{"ecosystem":"PyPI","name":"picklescan","purl":"pkg:pypi/picklescan","ranges":["<1.0.4"],"fixed":["1.0.4"]}]},{"id":"PYSEC-2026-4134","url":"https://osv.dev/vulnerability/PYSEC-2026-4134","summary":"PickleScan has multiple stdlib modules with direct RCE not in blocklist","modified":"2026-10-01T17:45:12.759566110Z","packages":[{"ecosystem":"PyPI","name":"picklescan","purl":"pkg:pypi/picklescan","ranges":["<1.0.4"],"fixed":["1.0.4"]}]}],"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."]}