{
  "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-2026-45305",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-45305",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-14T18:50:14.830Z",
    "updatedAt": "2026-07-15T14:03:58.116Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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": "Symfony: YAML Parser ReDoS via Catastrophic Backtracking in Parser::cleanup() Regex",
      "summary": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Symfony\\Component\\Yaml\\Parser::cleanup() used regular expressions with overlapping quantifiers for YAML directive, comment, and document marker cleanup, allowing crafted input to make parsing hang for an arbitrarily long time. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.",
      "affected": [
        {
          "vendor": "symfony",
          "product": "symfony",
          "versions": [
            {
              "version": "< 5.4.52",
              "status": "affected"
            },
            {
              "version": ">= 6.0.0-BETA1, < 6.4.40",
              "status": "affected"
            },
            {
              "version": ">= 7.0.0-BETA1, < 7.4.12",
              "status": "affected"
            },
            {
              "version": ">= 8.0.0-BETA1, < 8.0.12",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "symfony",
          "product": "yaml",
          "versions": [
            {
              "version": "< 5.4.52",
              "status": "affected"
            },
            {
              "version": ">= 6.0.0-BETA1, < 6.4.40",
              "status": "affected"
            },
            {
              "version": ">= 7.0.0-BETA1, < 7.4.12",
              "status": "affected"
            },
            {
              "version": ">= 8.0.0-BETA1, < 8.0.12",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}