Security advisory

{
  "id": "ed948b6347df4c95a6b699f609786a34cd6fead8046887a4258bc87174d64794",
  "url": "https://osv.dev/vulnerability/CVE-2021-20086",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-20086",
    "summary": "Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-bbq 1.2.1 allows a malicious user to inject properties into Object.prototype.",
    "evidence": "osv:CVE-2021-20086",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-20086",
      "aliases": [
        "CVE-2021-20086",
        "GHSA-7w8j-85wm-6xfq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cowboy/jquery-bbq",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4a1e51cc16222dea22d13e32e1da8cf2863816f9"
                },
                {
                  "last_affected": "4a1e51cc16222dea22d13e32e1da8cf2863816f9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jquery-bbq_project:jquery-bbq:1.2.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.1"
                      },
                      {
                        "last_affected": "1.2.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.2.1",
            "v1.2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20086.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:18.602617832Z",
      "provider": "osv",
      "references": [
        "https://security.netapp.com/advisory/ntap-20241108-0002/",
        "https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-bbq.md"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-20086",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429814,
  "published_at": "2021-04-23T19:15:10.943+00:00"
}