Security advisory

{
  "id": "cd48ccf6fc19579386e45a555a4fb04db63dba897ca975c995b7deff957ccb4e",
  "url": "https://osv.dev/vulnerability/CVE-2019-6802",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-6802",
    "summary": "CRLF Injection in pypiserver 1.2.5 and below allows attackers to set arbitrary HTTP headers and possibly conduct XSS attacks via a %0d%0a in a URI.",
    "evidence": "osv:CVE-2019-6802",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-6802",
      "aliases": [
        "CVE-2019-6802",
        "GHSA-mh24-7wvg-v88g",
        "PYSEC-2019-113"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pypiserver/pypiserver",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "4ab0c77e301576320bf476af2f03918322041bcd"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:python:pypiserver:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.2.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.2.dev0",
            "v1.2.1dev0",
            "v1.2.0b2",
            "v1.2.0",
            "v1.2.0.dev1",
            "v1.1.10",
            "1.1.10.dev1",
            "v1.1.9",
            "v1.1.9.dev4",
            "v1.1.9.dev3",
            "v1.1.9-dev.2",
            "v1.1.9-dev.1",
            "v1.1.9-dev.0",
            "1.1.8",
            "v1.1.8-beta.1",
            "v1.1.8-beta.0",
            "1.1.7",
            "1.1.7-rc.1",
            "1.1.7-beta.0",
            "1.1.6",
            "1.1.5",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "0.6.1",
            "0.6.0",
            "0.5.2",
            "0.5.1",
            "0.5.0",
            "0.4.1",
            "0.4.0",
            "0.3.0",
            "0.2.0",
            "0.1.3",
            "0.1.2",
            "0.1.1",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6802.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:41.843954592Z",
      "provider": "osv",
      "references": [
        "https://github.com/pypiserver/pypiserver/issues/237"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-6802",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382783,
  "published_at": "2019-01-25T04:29:00.24+00:00"
}