{
  "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-2026-68749",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68749",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-06T14:50:12.593Z",
    "updatedAt": "2026-08-19T11:48:20.102Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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": "Quadratic regex backtracking in the html_sanitize_ex CSS scrubber allows CPU-exhaustion denial of service",
      "summary": "Inefficient Regular Expression Complexity vulnerability in the CSS scrubber in rrrene html_sanitize_ex allows an unauthenticated remote attacker to exhaust server CPU via a long CSS declaration in sanitized HTML. The declaration regex in HtmlSanitizeEx.Scrubber.CSS.scrub/1 matches the property name with an unbounded greedy [-\\w]+ followed by a mandatory :, so a long run of word characters not followed by a colon makes the engine give back one character at a time and retry the colon at every start offset. The work is quadratic in the length of the run, and no length cap is applied to the CSS handed to the scrubber. An 80 KB <style> body costs roughly 2.4 seconds of scheduler time, so a few concurrent requests saturate the BEAM scheduler pool and make the application unresponsive.\n\nThe impact is CPU exhaustion only. Nothing is read, modified or disclosed.\n\nThis issue affects html_sanitize_ex: from 0.3.1 before 1.4.5 and from 1.5.0-rc.0 before 1.5.3.",
      "affected": [
        {
          "vendor": "rrrene",
          "product": "html_sanitize_ex",
          "packageName": "html_sanitize_ex",
          "collectionURL": "https://repo.hex.pm",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0.3.1",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.4.5"
            },
            {
              "version": "1.5.0-rc.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.5.3"
            }
          ]
        },
        {
          "vendor": "rrrene",
          "product": "html_sanitize_ex",
          "packageName": "rrrene/html_sanitize_ex",
          "collectionURL": "https://github.com",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "21f90012eb21aa36f4e3701b7547e12faf0f3c8b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "*",
              "changes": [
                {
                  "at": "4f4bd9eb254881462c0461fbab74b29188c2c133",
                  "status": "unaffected"
                },
                {
                  "at": "b673df33ddf982c8bd0a8bd6348aa247080b3b14",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}