{
  "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-2026-68300",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68300",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-10T12:02:34.168Z",
    "updatedAt": "2026-10-19T21:09:04.214Z",
    "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": "sctp: auth: verify auth requirement when auth_chunk is NULL",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: auth: verify auth requirement when auth_chunk is NULL\n\nsctp_auth_chunk_verify() returns true unconditionally when\nchunk->auth_chunk is NULL, silently skipping authentication.\nThis is incorrect when:\n\n1. skb_clone() failed in the BH receive path, leaving auth_chunk\n   NULL. In sctp_endpoint_bh_rcv() asoc is NULL for new\n   connections, so the early sctp_auth_recv_cid() check cannot\n   catch this.\n\n2. No AUTH chunk precedes COOKIE-ECHO, so skb_clone() is never\n   called and auth_chunk remains NULL.\n\nFix by checking sctp_auth_recv_cid() when auth_chunk is NULL:\nif authentication is required, return false to drop the chunk;\notherwise continue normally.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bbd0d59809f923ea2b540cbd781b32110e249f6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a129792b3aef15002746c13522781d92ed3522c3"
            },
            {
              "version": "bbd0d59809f923ea2b540cbd781b32110e249f6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5a022ac51ad83b4ce6c898f4b9eefc65bd26b247"
            },
            {
              "version": "bbd0d59809f923ea2b540cbd781b32110e249f6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6caf0e8590c0bf05a76b0d387726adf3a6f3725c"
            },
            {
              "version": "bbd0d59809f923ea2b540cbd781b32110e249f6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ec2e157fc9678a9bc411305a25aec3fd337d7efb"
            },
            {
              "version": "bbd0d59809f923ea2b540cbd781b32110e249f6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "28c5fdce9dd955d2baf5e28987819b6d7cfaf646"
            },
            {
              "version": "bbd0d59809f923ea2b540cbd781b32110e249f6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "18957373920caf5cdaf5cf32e5d1d7a99ca7700a"
            },
            {
              "version": "bbd0d59809f923ea2b540cbd781b32110e249f6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "83f5031f2a6a49d696eb4cc0898345d12f9c6451"
            },
            {
              "version": "bbd0d59809f923ea2b540cbd781b32110e249f6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8e04823c120b376ef7dab14b60ebf6823aa16c14"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.24",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.24"
            },
            {
              "version": "5.10.265",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.216",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.183",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.148",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}