{
  "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-2026-35189",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-35189",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-29T15:32:11.889Z",
    "updatedAt": "2026-09-30T20:11:09.577Z",
    "importedAt": "2026-10-24T01:58:08.712Z",
    "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": "Excessive Memory Allocation in Relative CRLDP Processing",
      "summary": "Issue summary: A certificate with many nameRelativeToCRLIssuer CRL\ndistribution points causes disproportionate heap growth when OpenSSL caches\nX.509 extensions.\n\nImpact summary: Receiving a crafted certificate from a malicious peer can lead\nto significant memory pressure and possible Denial of Service in clients or\nin servers that solicit client certificates.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: A certificate or a set of certificates that fits under the limit for\nsize of certificates accepted from the peer (~100 KiB) can result in allocation\nof several hundred MiB of resident memory on the receiving side\nduring a normal TLS handshake.  This may be enough to crash the client or\nserver, if multiple concurrent connections lead to similarly large memory\nallocations.\n\nThe fix postpones processing of the CRL distribution points extensions in\ncertificates to the time when the processed value is required for CRL processing.\nThis avoids keeping large memory allocations for a long time when such\ncertificates are received.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary.",
      "affected": [
        {
          "vendor": "OpenSSL",
          "product": "OpenSSL",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.0.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.0.3"
            },
            {
              "version": "3.6.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.6.5"
            },
            {
              "version": "3.5.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.5.9"
            },
            {
              "version": "3.4.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.4.8"
            },
            {
              "version": "3.0.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.0.23"
            },
            {
              "version": "1.1.1",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.1.1zj"
            },
            {
              "version": "1.0.2",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.0.2zs"
            }
          ]
        }
      ]
    }
  }
}