Security advisory

{
  "id": "345820dbc268c272298ad71d1c9e5b0c80a9417d2faf064a1083737c81a16c5b",
  "url": "https://osv.dev/vulnerability/CVE-2020-35669",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-35669",
    "summary": "An issue was discovered in the http package through 0.12.2 for Dart. If the attacker controls the HTTP method and the app is using Request directly, it's possible to achieve CRLF injection in an HTTP request.",
    "evidence": "osv:CVE-2020-35669",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-35669",
      "aliases": [
        "CVE-2020-35669",
        "GHSA-4rgh-jx4f-qfcq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/dart-lang/http",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "ba03ec18c34bc253d285076f9cc3d6e4a436b84e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:dart:http:*:*:*:*:*:dart:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.12.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.12.2",
            "0.12.1",
            "0.12.0+4",
            "0.12.0+3",
            "0.12.0+2",
            "0.12.0",
            "0.11.3+17",
            "0.11.3+16",
            "0.11.3+15",
            "0.11.3+14",
            "0.11.3+13",
            "0.11.3+12",
            "0.11.3+11",
            "0.11.3+10",
            "0.11.3+9",
            "0.11.3+8",
            "0.11.3+7",
            "0.11.3+6",
            "0.11.3+5",
            "0.11.3+4",
            "0.11.3+3",
            "0.11.3+2",
            "0.11.3+1",
            "0.11.3",
            "0.11.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35669.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:24.240079890Z",
      "provider": "osv",
      "references": [
        "https://github.com/dart-lang/http/blob/master/CHANGELOG.md#0133",
        "https://github.com/dart-lang/http/issues/511"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-35669",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384294,
  "published_at": "2020-12-24T03:15:12.53+00:00"
}