Security advisory

{
  "id": "14877b870061ce8965a15b123a376190f54d460f321487bdf27d473e26972989",
  "url": "https://osv.dev/vulnerability/CVE-2021-3909",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3909",
    "summary": "OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes OctoRPKI wait forever. Specifically, the repository that OctoRPKI sends HTTP requests to will keep the connection open for a day before a response is returned, but does keep drip feeding new bytes to keep the connection alive.",
    "evidence": "osv:CVE-2021-3909",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-3909",
      "aliases": [
        "CVE-2021-3909",
        "GHSA-8cvr-4rrf-f244",
        "GO-2022-0250"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cloudflare/cfrpki",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a8db4e009ef217484598ba1fd1c595b54e0f6422"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.2.0-pre",
            "v1.1.4",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "1.0.3",
            "1.0.2",
            "1.0.1",
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3909.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:52.678069053Z",
      "provider": "osv",
      "references": [
        "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-8cvr-4rrf-f244",
        "https://www.debian.org/security/2021/dsa-5033",
        "https://www.debian.org/security/2022/dsa-5041"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-3909",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386336,
  "published_at": "2021-11-11T22:15:07.923+00:00"
}