{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-102831",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-102831",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-29T18:58:03.634Z",
    "updatedAt": "2026-10-02T12:22:58.664Z",
    "importedAt": "2026-10-24T01:57:50.502Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "JupyterLab: Cross-site scripting (XSS) in JupyterLab via notebook cells pasted from the system clipboard",
      "summary": "JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From JupyterLab 4.5.0 until 4.5.11 and 4.6.4, from Notebook 7.5.0 until 7.6.3, and from JupyterLite Core 0.7.0 until 0.8.4, the system clipboard cell-paste path accepts attacker-controlled cell JSON without clearing metadata.trusted. When useSystemClipboardForCells is active and pasteCodeCellsWithoutOutput is disabled, a pasted code cell can mark HTML output as trusted, bypass output sanitization, and execute script in the authenticated JupyterLab origin without executing the cell. Markdown and raw cells are not affected because their output is sanitized. This issue is fixed in JupyterLab 4.5.11 and 4.6.4, Notebook 7.6.3, and JupyterLite Core 0.8.4.",
      "affected": [
        {
          "vendor": "jupyterlab",
          "product": "jupyterlab",
          "versions": [
            {
              "version": ">= 4.5.0, < 4.5.11",
              "status": "affected"
            },
            {
              "version": ">= 4.6.0, < 4.6.4",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "jupyterlab",
          "product": "notebook",
          "versions": [
            {
              "version": ">= 7.5.0, < 7.6.3",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "jupyterlab",
          "product": "jupyterlite-core",
          "versions": [
            {
              "version": ">= 0.7.0, < 0.8.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}