{
  "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-2026-31428",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31428",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-13T13:40:30.987Z",
    "updatedAt": "2026-10-15T01:16:10.258Z",
    "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: nfnetlink_log: fix uninitialized padding leak in NFULA_PAYLOAD",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_log: fix uninitialized padding leak in NFULA_PAYLOAD\n\n__build_packet_message() manually constructs the NFULA_PAYLOAD netlink\nattribute using skb_put() and skb_copy_bits(), bypassing the standard\nnla_reserve()/nla_put() helpers. While nla_total_size(data_len) bytes\nare allocated (including NLA alignment padding), only data_len bytes\nof actual packet data are copied. The trailing nla_padlen(data_len)\nbytes (1-3 when data_len is not 4-byte aligned) are never initialized,\nleaking stale heap contents to userspace via the NFLOG netlink socket.\n\nReplace the manual attribute construction with nla_reserve(), which\nhandles the tailroom check, header setup, and padding zeroing via\n__nla_reserve(). The subsequent skb_copy_bits() fills in the payload\ndata on top of the properly initialized attribute.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "df6fb868d6118686805c2fa566e213a8f31c8e4f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7f3e5d72455936f42709116fabeca3bb216cda62"
            },
            {
              "version": "df6fb868d6118686805c2fa566e213a8f31c8e4f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "21d8efda029948d3666b0db5afcc0d36c0984aae"
            },
            {
              "version": "df6fb868d6118686805c2fa566e213a8f31c8e4f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fc961dd7272b5e4a462999635e44a4770d7f2482"
            },
            {
              "version": "df6fb868d6118686805c2fa566e213a8f31c8e4f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a8365d1064ded323797c5e28e91070c52f44b76c"
            },
            {
              "version": "df6fb868d6118686805c2fa566e213a8f31c8e4f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a2f6ff3444b663d6cfa63eadd61327a18592885a"
            },
            {
              "version": "df6fb868d6118686805c2fa566e213a8f31c8e4f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c9f6c51d36482805ac3ffadb9663fe775a13e926"
            },
            {
              "version": "df6fb868d6118686805c2fa566e213a8f31c8e4f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7eff72968161fb8ddb26113344de3b92fb7d7ef5"
            },
            {
              "version": "df6fb868d6118686805c2fa566e213a8f31c8e4f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "52025ebaa29f4eb4ed8bf92ce83a68f24ab7fdf7"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.24",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.24"
            },
            {
              "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": "6.6.131",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.80",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.21",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}