Security advisory

{
  "id": "eb14fd5a6bedfac557387e5329c01d1fe708d8fbfb9faf90485fbbb9247a834d",
  "url": "https://osv.dev/vulnerability/CVE-2020-22083",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-22083",
    "summary": "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",
    "evidence": "osv:CVE-2020-22083",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-22083",
      "aliases": [
        "CVE-2020-22083",
        "GHSA-j66q-qmrc-89rx",
        "PYSEC-2020-49"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jsonpickle/jsonpickle",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "632b9a9c8683fd6130855fe633768ff426b3acec"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jsonpickle_project:jsonpickle:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.4.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.4.1",
            "v1.4",
            "v1.3",
            "v1.2",
            "v1.1",
            "v1.0",
            "v0.9.6",
            "v0.9.5",
            "v0.9.4",
            "v0.9.3",
            "v0.9.2",
            "v0.9.1",
            "v0.9.0",
            "v0.8.0",
            "v0.7.2",
            "v0.7.1",
            "v0.7.0",
            "v0.6.1",
            "v0.6.0",
            "v0.5.0",
            "0.4.0",
            "0.3.1",
            "0.3.0",
            "0.2.0",
            "0.1.0",
            "0.0.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-22083.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:14.349638946Z",
      "provider": "osv",
      "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",
        "https://versprite.com/blog/application-security/into-the-jar-jsonpickle-exploitation/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-22083",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383488,
  "published_at": "2020-12-17T16:15:12.61+00:00"
}