{
  "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-2026-89776",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89776",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-16T08:48:17.084Z",
    "updatedAt": "2026-10-19T08:52:28.559Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "vxlan: vnifilter: enforce exact length of GROUP/GROUP6 attributes",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: vnifilter: enforce exact length of GROUP/GROUP6 attributes\n\nThe VXLAN VNI filter entry policy declares the GROUP/GROUP6 address\nattributes as NLA_BINARY with only a maximum length, so validate_nla()\naccepts a payload shorter than the address. The GROUP consumer reads it\nwith nla_get_in_addr(), an unconditional 4-byte load, so a short\nattribute over-reads up to 3 bytes of uninitialised slab data, which are\nstored into remote_ip and echoed back via RTM_GETTUNNEL, disclosing\nkernel memory.\n\nSwitch both entries to NLA_POLICY_EXACT_LEN() so the validator rejects\nany GROUP/GROUP6 that is not exactly 4 / 16 bytes; a valid address is\nalways sent at full width.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f9c4bb0b245cee35ef66f75bf409c9573d934cf9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e12c4663529699f457b2988c1dfedf4d13b3b3be"
            },
            {
              "version": "f9c4bb0b245cee35ef66f75bf409c9573d934cf9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "47bfcc871576eaef6c8edab6749acd4b317306ea"
            },
            {
              "version": "f9c4bb0b245cee35ef66f75bf409c9573d934cf9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a9ec10815199f9879ba080241dc555efb1daf324"
            },
            {
              "version": "f9c4bb0b245cee35ef66f75bf409c9573d934cf9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "daebc7064a1b4c12c98e52c4bceede7f2fcd573c"
            },
            {
              "version": "f9c4bb0b245cee35ef66f75bf409c9573d934cf9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ad32e564c62ebf5ba76dd60a22af52c69d54d17b"
            },
            {
              "version": "f9c4bb0b245cee35ef66f75bf409c9573d934cf9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "984f831dda31b3a18f47454cf64989f65402879e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.18"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.52",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}