Security advisory

{
  "id": "19d9d46a7b54716b044fb811ac1f11c3559ed0e8a31e304ac4bd9dbfd7d9bdf4",
  "url": "https://osv.dev/vulnerability/CVE-2018-19351",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19351",
    "summary": "Jupyter Notebook before 5.7.1 allows XSS via an untrusted notebook because nbconvert responses are considered to have the same origin as the notebook server. In other words, nbconvert endpoints can execute JavaScript with access to the server API. In notebook/nbconvert/handlers.py, NbconvertFileHandler and NbconvertPostHandler do not set a Content Security Policy to prevent this.",
    "evidence": "osv:CVE-2018-19351",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-19351",
      "aliases": [
        "CVE-2018-19351",
        "GHSA-49qr-xh3w-h436",
        "PYSEC-2018-17"
      ],
      "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/jupyter/notebook",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "154fa08c48c4b549484347c9c5e1f7c85cf4e02d"
                },
                {
                  "fixed": "107a89fce5f413fb5728c1c5d2c7788e1fb17491"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jupyter:notebook:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "5.7.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "107a89fce5f413fb5728c1c5d2c7788e1fb17491"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.7.0",
            "5.6.0",
            "5.6.0rc1",
            "5.5.0",
            "5.5.0rc1",
            "5.4.0",
            "5.3.1",
            "5.3.0",
            "5.3.0rc1",
            "5.2.0",
            "5.2.0rc1",
            "5.1.0",
            "5.1.0rc3",
            "5.1.0rc1",
            "5.0.0",
            "5.0.0rc2",
            "5.0.0-rc.1",
            "5.0.0b2",
            "5.0.0b1",
            "4.1.0",
            "4.0.1",
            "4.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19351.json"
          }
        }
      ],
      "modified": "2026-10-24T10:49:38.678079678Z",
      "provider": "osv",
      "references": [
        "https://groups.google.com/forum/#%21topic/jupyter/hWzu2BSsplY",
        "https://lists.debian.org/debian-lts-announce/2020/11/msg00033.html",
        "https://github.com/jupyter/notebook/blob/master/docs/source/changelog.rst",
        "https://pypi.org/project/notebook/#history",
        "https://github.com/jupyter/notebook/commit/107a89fce5f413fb5728c1c5d2c7788e1fb17491"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:jupyter:notebook:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "jupyter:notebook",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "5.7.1"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-19351",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441786,
  "published_at": "2018-11-18T17:29:00.267+00:00"
}