{
  "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-2026-93808",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-93808",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-24T16:02:43.621Z",
    "updatedAt": "2026-10-03T10:57:41.411Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "ALSA: usb-audio: caiaq: validate EP1 reply lengths",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: caiaq: validate EP1 reply lengths\n\nusb_ep1_command_reply_dispatch() uses buf[0] as a command byte and then\nreads command-specific fixed items from the same URB buffer. Several\npaths use buf + 1, buf[1], buf[2], or buf + 3 without first proving that\nurb->actual_length contains those bytes.\n\nAdd per-command length checks, use a payload length derived from the\nbytes after the command byte for the control-state copy, and reject short\nanalog input payloads before the input helper reads fixed offsets from\nthe EP1 reply.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "91acd231f219452fa58285239f83945accad9513"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7cc6b3745a0cea697c8d0684b3094f220281a08d"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "add9328c91c195c494cd68a21b19e5e47a20d784"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "319393151367e6626affedcdd4f7b7b0286f4246"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "af8a172c4f71ac30d625f2966d2389a7fa872819"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "74f3c639f64fa5da4e1613149798b5089bce2807"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aba30af07d4fe499b50209801eba9da8a815522f"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.22",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.22"
            },
            {
              "version": "5.10.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.222",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.111",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.53",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}