{
  "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-2026-19135",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-19135",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-13T04:47:25.584Z",
    "updatedAt": "2026-08-13T13:02:21.227Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "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": "OpenNMS JEXL sandbox bypass in Measurements REST API allows ROLE_USER to load arbitrary classes",
      "summary": "A JEXL expression sandbox bypass exists in multiple versions of OpenNMS Meridian and Horizon. A low-privileged authenticated user can submit a crafted expression to the Measurements REST API that escapes the sandbox and loads arbitrary Java classes on the server. This can potentially allow an attacker to gain access to confidential information and compromise integrity.\n\nThe solution is to upgrade to Meridian 2024.3.12, 2025.0.9 and Horizon 36.0.3 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.",
      "affected": [
        {
          "vendor": "The OpenNMS Group",
          "product": "Meridian",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2024.1.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "2024.3.12"
            },
            {
              "version": "2025.0.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "2025.0.9"
            }
          ]
        },
        {
          "vendor": "The OpenNMS Group",
          "product": "Horizon",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "36.0.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "36.0.3"
            }
          ]
        }
      ]
    }
  }
}