{
  "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-2026-12209",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-12209",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-15T02:15:07.361Z",
    "updatedAt": "2026-06-15T12:52:28.046Z",
    "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": "RubyLouvre avalon Template Filter index.js prototype pollution",
      "summary": "A security vulnerability has been detected in RubyLouvre avalon up to 2.2.10. The impacted element is an unknown function of the file src/filters/index.js of the component Template Filter Handler. Such manipulation leads to improperly controlled modification of object prototype attributes. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
      "affected": [
        {
          "vendor": "RubyLouvre",
          "product": "avalon",
          "versions": [
            {
              "version": "2.2.0",
              "status": "affected"
            },
            {
              "version": "2.2.1",
              "status": "affected"
            },
            {
              "version": "2.2.2",
              "status": "affected"
            },
            {
              "version": "2.2.3",
              "status": "affected"
            },
            {
              "version": "2.2.4",
              "status": "affected"
            },
            {
              "version": "2.2.5",
              "status": "affected"
            },
            {
              "version": "2.2.6",
              "status": "affected"
            },
            {
              "version": "2.2.7",
              "status": "affected"
            },
            {
              "version": "2.2.8",
              "status": "affected"
            },
            {
              "version": "2.2.9",
              "status": "affected"
            },
            {
              "version": "2.2.10",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}