{"cve":"CVE-2020-22083","nvd":{"published":"2020-12-17T16:15:12.610","modified":"2026-06-17T03:04:07.290","status":"Modified","description":"jsonpickle through 1.4.1 allows remote code execution during deserialization of a malicious payload through the decode() function. Note: It has been argued that this is expected and clearly documented behaviour. pickle is known to be capable of causing arbitrary code execution, and must not be used with un-trusted data","cvss_v4":null,"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-502"],"references":["https://access.redhat.com/security/cve/CVE-2020-22083","https://gist.github.com/j0lt-github/bb543e77a1a10c33cb56cf23d0837874","https://github.com/j0lt-github/python-deserialization-attack-payload-generator","https://github.com/jsonpickle/jsonpickle/issues/332","https://github.com/jsonpickle/jsonpickle/issues/332#issuecomment-747807494"],"products":["jsonpickle_project:jsonpickle"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-22083","score":0.06495,"percentile":0.93766,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-j66q-qmrc-89rx","url":"https://osv.dev/vulnerability/GHSA-j66q-qmrc-89rx","summary":"jsonpickle unsafe deserialization","modified":"2025-02-15T05:29:30.689245Z","packages":[{"ecosystem":"PyPI","name":"jsonpickle","purl":"pkg:pypi/jsonpickle","ranges":["<=1.4.2"],"fixed":[]}]},{"id":"PYSEC-2020-49","url":"https://osv.dev/vulnerability/PYSEC-2020-49","summary":"","modified":"2026-06-10T17:01:50.041049802Z","packages":[{"ecosystem":"PyPI","name":"jsonpickle","purl":"pkg:pypi/jsonpickle","ranges":["<1.4.2"],"fixed":["1.4.2"]}]}],"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."]}