{
  "id": "CVE-2026-111058",
  "url": "https://spydr.io/cve/CVE-2026-111058",
  "published": "2026-10-19T16:17:03.957Z",
  "modified": "2026-10-19T21:13:39.973Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "github.com",
  "epss": null,
  "epss_percentile": null,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": "none",
  "vendors": [
    "mljar"
  ],
  "products": [
    "mljar mercury"
  ],
  "cwes": [
    "CWE-862"
  ],
  "description": "Mercury is a Python framework for sharing Jupyter notebooks as web applications and dashboards. Prior to 3.2.6, default tokenless deployments allow anonymous clients to create Jupyter kernels and send execute_request messages containing arbitrary Python. The endpoint blocklist does not cover /api/kernels, and the websocket wrapper previously tracked idle activity without authorizing executable messages. This issue is fixed in version 3.2.6.",
  "status": "Awaiting Analysis",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/mljar/mercury/commit/73a40ceb0becf057f495a5738ad7f5a5222a53e1",
      "tags": []
    },
    {
      "url": "https://github.com/mljar/mercury/releases/tag/3.2.6",
      "tags": []
    },
    {
      "url": "https://github.com/mljar/mercury/security/advisories/GHSA-rv4m-xm3f-3ccq",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111058",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}