{
  "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-2026-31418",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31418",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-13T13:21:05.316Z",
    "updatedAt": "2026-10-15T01:15:59.026Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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: ipset: drop logically empty buckets in mtype_del",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: drop logically empty buckets in mtype_del\n\nmtype_del() counts empty slots below n->pos in k, but it only drops the\nbucket when both n->pos and k are zero. This misses buckets whose live\nentries have all been removed while n->pos still points past deleted slots.\n\nTreat a bucket as empty when all positions below n->pos are unused and\nrelease it directly instead of shrinking it further.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8af1c6fbd9239877998c7f5a591cb2c88d41fb66",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c098ff857e7ca923539164af5b3c2fe3e8f8afaf"
            },
            {
              "version": "8af1c6fbd9239877998c7f5a591cb2c88d41fb66",
              "status": "affected",
              "versionType": "git",
              "lessThan": "58f3a14826d4e6b0d5421f1a64be280b48601ea2"
            },
            {
              "version": "8af1c6fbd9239877998c7f5a591cb2c88d41fb66",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ad92ee87462f9a3061361d392e9dbfe2e5c1c9fb"
            },
            {
              "version": "8af1c6fbd9239877998c7f5a591cb2c88d41fb66",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6cea34d7ec6829b62f521a37a287f670144a2233"
            },
            {
              "version": "8af1c6fbd9239877998c7f5a591cb2c88d41fb66",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b7eef00f08b92b0b9efe8ae0df6d0005e6199323"
            },
            {
              "version": "8af1c6fbd9239877998c7f5a591cb2c88d41fb66",
              "status": "affected",
              "versionType": "git",
              "lessThan": "68ca0eea0af02bed36c5e2c13e9fa1647c31a7d4"
            },
            {
              "version": "8af1c6fbd9239877998c7f5a591cb2c88d41fb66",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ceacaa76f221a6577aba945bb8873c2e640aeba4"
            },
            {
              "version": "8af1c6fbd9239877998c7f5a591cb2c88d41fb66",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9862ef9ab0a116c6dca98842aab7de13a252ae02"
            },
            {
              "version": "6c717726f341fd8f39a3ec2dcf5d98d9d28a2769",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "d2997d64dfa65082236bca1efd596b6c935daf5e",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.4.24",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "5.5.8",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.6"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.6",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.6"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.134",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.81",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.22",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}