Security advisory

{
  "id": "a5ce9b3524c6efce8a73bdfcf3afe5005f703191f0717304ca3a183843f8a0c4",
  "url": "https://osv.dev/vulnerability/CVE-2021-28966",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-28966",
    "summary": "In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web application handles a parameter with TmpDir.",
    "evidence": "osv:CVE-2021-28966",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-28966",
      "aliases": [
        "BIT-ruby-2021-28966",
        "BIT-ruby-min-2021-28966",
        "CVE-2021-28966",
        "GHSA-46f2-3v63-3xrp"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ruby/ruby",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6847ee089d7655b2a0eea4fee3133aeacd4cc7cc"
                },
                {
                  "introduced": "95aff214687a5e12c3eb57d056665741e734c188"
                },
                {
                  "fixed": "0fb782ee38ea37fd5fe8b1f775f8ad866a82a3f0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.7.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "3.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3_0_0",
            "v2_7_2",
            "v2_7_1",
            "v2_7_0",
            "v2_7_0_rc2",
            "v2_7_0_rc1",
            "v2_7_0_preview3",
            "v2_7_0_preview2",
            "v2_7_0_preview1",
            "v1_0_r2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28966.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:18.110234372Z",
      "provider": "osv",
      "references": [
        "https://security.netapp.com/advisory/ntap-20210902-0004/",
        "https://hackerone.com/reports/1131465"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-28966",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429696,
  "published_at": "2021-07-30T14:15:16.303+00:00"
}