{
  "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-2026-72256",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72256",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:54:43.706Z",
    "updatedAt": "2026-08-17T05:11:14.683Z",
    "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": "netfilter: xt_cluster: reject template conntracks in hash match",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_cluster: reject template conntracks in hash match\n\nxt_cluster_mt() treats any non-NULL nf_ct_get() result as a fully\ninitialized conntrack and passes it to xt_cluster_hash().\n\nThis causes a state confusion bug when the raw table CT target attaches\na template conntrack to skb->_nfct before normal conntrack processing.\nTemplates carry IPS_TEMPLATE status but do not have a valid tuple for\nhashing yet, so xt_cluster_hash() can hit its WARN_ON() path on the\nzeroed l3num field.\n\nReject template conntracks before hashing them. This matches existing\nnetfilter handling for template objects and avoids hashing incomplete\nconntrack state.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0269ea4937343536ec7e85649932bc8c9686ea78",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4558bd7b47c7be82dffd837f27be8ea3ecee557d"
            },
            {
              "version": "0269ea4937343536ec7e85649932bc8c9686ea78",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d5f9d050b0b267227c1f02f11021872c7768a9cc"
            },
            {
              "version": "0269ea4937343536ec7e85649932bc8c9686ea78",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4cb8b5f586e41c187942291cc0938006077fa79e"
            },
            {
              "version": "0269ea4937343536ec7e85649932bc8c9686ea78",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fac2fdac3baad9ffd12b3b0bba4374d4b3585d54"
            },
            {
              "version": "0269ea4937343536ec7e85649932bc8c9686ea78",
              "status": "affected",
              "versionType": "git",
              "lessThan": "13ea4f86cf738c74be2146886ac261988a631e62"
            },
            {
              "version": "0269ea4937343536ec7e85649932bc8c9686ea78",
              "status": "affected",
              "versionType": "git",
              "lessThan": "07f9ddbf5e799c24a3a52ec9bd7b729a6f6d69d5"
            },
            {
              "version": "0269ea4937343536ec7e85649932bc8c9686ea78",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5b2d4f0010018a7aa3495aa1dbf1b7a34011e7aa"
            },
            {
              "version": "0269ea4937343536ec7e85649932bc8c9686ea78",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5feba91006ec92da57acc1cc2e34df623b98541e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.30",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.30"
            },
            {
              "version": "5.10.261",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.97",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}