Security advisory

{
  "id": "b406393a247b0e83b798124e3754f31291bc41961b1bc45911695e1bce5de881",
  "url": "https://osv.dev/vulnerability/CVE-2019-12387",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-12387",
    "summary": "In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.",
    "evidence": "osv:CVE-2019-12387",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-12387",
      "aliases": [
        "CVE-2019-12387",
        "GHSA-6cc5-2vg4-cc7m",
        "PYSEC-2019-128"
      ],
      "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/twisted/twisted",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c0776850e756adfcdc179a7fd9e4c8f5cbc4838d"
                },
                {
                  "fixed": "6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:twisted:twisted:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "19.2.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "twisted-19.2.0",
            "before-black"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12387.json"
          }
        }
      ],
      "modified": "2026-10-24T10:47:46.179353881Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/",
        "https://usn.ubuntu.com/4308-1/",
        "https://usn.ubuntu.com/4308-2/",
        "https://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2",
        "https://www.oracle.com/security-alerts/cpuapr2020.html",
        "https://labs.twistedmatrix.com/2019/06/twisted-1921-released.html",
        "https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  },
                  {
                    "introduced": "19.10"
                  },
                  {
                    "last_affected": "19.10"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "29"
                  },
                  {
                    "last_affected": "29"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:solaris",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "11"
                  },
                  {
                    "last_affected": "11"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:zfs_storage_appliance_kit",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.8"
                  },
                  {
                    "last_affected": "8.8"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-12387",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441544,
  "published_at": "2019-06-10T12:29:00.287+00:00"
}