Security advisory

{
  "id": "b1ec4596d953512e56c8826c568d0cf8f1c8573c8be72a474b740aa6c5e83279",
  "url": "https://osv.dev/vulnerability/CVE-2019-11236",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-11236",
    "summary": "In the urllib3 library through 1.24.1 for Python, CRLF injection is possible if the attacker controls the request parameter.",
    "evidence": "osv:CVE-2019-11236",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-11236",
      "aliases": [
        "CVE-2019-11236",
        "GHSA-r64q-w8jr-g9qp",
        "PYSEC-2019-132"
      ],
      "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/urllib3/urllib3",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "1efadf43dc63317cd9eaa3e0fdb9e05ab07254b1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:python:urllib3:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.24.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.24.2",
            "1.24.1",
            "1.24",
            "1.23",
            "1.22",
            "1.21.1",
            "1.21",
            "1.20",
            "1.19",
            "1.18",
            "1.16",
            "1.15.1",
            "1.15",
            "1.14",
            "1.13.1",
            "1.13",
            "1.12",
            "1.11",
            "1.10.4",
            "1.10.3",
            "1.7.1",
            "1.7",
            "1.6",
            "1.5",
            "1.4",
            "1.3",
            "1.2.1",
            "1.2",
            "1.1",
            "0.4.1",
            "0.4",
            "0.3.1",
            "0.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11236.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:38.617210661Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2019/06/msg00016.html",
        "https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html",
        "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NKGPJLVLVYCL4L4B4G5TIOTVK4BKPG72/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R62XGEYPUTXMRHGX5I37EBCGQ5COHGKR/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TBI45HO533KYHNB5YRO43TBYKA3E3VRL/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XOSA2NT4DUQDBEIWE6O7KKD24XND7TE2/",
        "https://usn.ubuntu.com/3990-1/",
        "https://usn.ubuntu.com/3990-2/",
        "https://access.redhat.com/errata/RHSA-2019:2272",
        "https://access.redhat.com/errata/RHSA-2019:3335",
        "https://access.redhat.com/errata/RHSA-2019:3590",
        "https://github.com/urllib3/urllib3/issues/1553"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-11236",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381947,
  "published_at": "2019-04-15T15:29:00.637+00:00"
}