Security advisory

{
  "id": "8b1f0e905bddfa4ded5c5fc6c9b27b804622cd07fc7f682025cb36ab149a7bbb",
  "url": "https://osv.dev/vulnerability/CVE-2021-25912",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-25912",
    "summary": "Prototype pollution vulnerability in 'dotty' versions 0.0.1 through 0.1.0 allows attackers to cause a denial of service and may lead to remote code execution.",
    "evidence": "osv:CVE-2021-25912",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-25912",
      "aliases": [
        "CVE-2021-25912",
        "GHSA-f5c9-x9j6-87qp"
      ],
      "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/deoxxa/dotty",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3e59c8d25b6cf78c419ccdc03a4669363d57db90"
                },
                {
                  "last_affected": "5f436ffe395f142b7301d6ab77d22a2f66ef3bb0"
                },
                {
                  "fixed": "cd997d37917186c131be71501a698803f2b7ebdb"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:dotty_project:dotty:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.0.1"
                      },
                      {
                        "last_affected": "0.1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "cd997d37917186c131be71501a698803f2b7ebdb"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-25912.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:40.269508138Z",
      "provider": "osv",
      "references": [
        "https://github.com/deoxxa/dotty/commit/cd997d37917186c131be71501a698803f2b7ebdb",
        "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25912"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-25912",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384473,
  "published_at": "2021-02-02T19:15:14.55+00:00"
}