{
  "cveId": "CVE-2020-26215",
  "url": "https://patchblox.com/security/cve/CVE-2020-26215",
  "summary": "CVE-2020-26215 is fixed in 3 products on 1 platform, first by jupyter-notebook 5.2.2-1ubuntu0.1, released March 31, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "jupyter-notebook: Jupyter Notebook before version 6.1.5 has an Open redirect vulnerability",
  "description": "Jupyter Notebook before version 6.1.5 has an Open redirect vulnerability. A maliciously crafted link to a notebook server could redirect the browser to a different website. All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may appear safe, but ultimately redirect to a spoofed server on the public internet. The issue is patched in version 6.1.5.",
  "published": "2020-11-18T14:15:00Z",
  "severity": "Medium",
  "epss": 0.01228,
  "epssPercentile": 0.69061,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "jupyter-notebook",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "5.2.2-1ubuntu0.1",
      "fix": "jupyter-notebook 5.2.2-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-jupyter-notebook-5.2.2-1ubuntu0.1",
      "released": "2022-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "jupyter-notebook",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "6.0.3-2ubuntu0.1",
      "fix": "jupyter-notebook 6.0.3-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-jupyter-notebook-6.0.3-2ubuntu0.1",
      "released": "2022-06-14T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-notebook",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "5.2.2-1ubuntu0.1",
      "fix": "python-notebook 5.2.2-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-notebook-5.2.2-1ubuntu0.1",
      "released": "2022-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-notebook",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "5.2.2-1ubuntu0.1",
      "fix": "python3-notebook 5.2.2-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python3-notebook-5.2.2-1ubuntu0.1",
      "released": "2022-03-31T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-notebook",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "6.0.3-2ubuntu0.1",
      "fix": "python3-notebook 6.0.3-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python3-notebook-6.0.3-2ubuntu0.1",
      "released": "2022-06-14T11:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}