{
  "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-2026-23388",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23388",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-03-25T10:28:06.224Z",
    "updatedAt": "2026-10-15T01:14:38.860Z",
    "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": "Squashfs: check metadata block offset is within range",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nSquashfs: check metadata block offset is within range\n\nSyzkaller reports a \"general protection fault in squashfs_copy_data\"\n\nThis is ultimately caused by a corrupted index look-up table, which\nproduces a negative metadata block offset.\n\nThis is subsequently passed to squashfs_copy_data (via\nsquashfs_read_metadata) where the negative offset causes an out of bounds\naccess.\n\nThe fix is to check that the offset is within range in\nsquashfs_read_metadata.  This will trap this and other cases.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f400e12656ab518be107febfe2315fb1eab5a342",
              "status": "affected",
              "versionType": "git",
              "lessThan": "60f679f643f3f36a8571ea585e4ce5d93ef952b5"
            },
            {
              "version": "f400e12656ab518be107febfe2315fb1eab5a342",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3f68a9457a6190814377577374da75f872e0a013"
            },
            {
              "version": "f400e12656ab518be107febfe2315fb1eab5a342",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0c8ab092aec3ac4294940054772d30b511b16713"
            },
            {
              "version": "f400e12656ab518be107febfe2315fb1eab5a342",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6b847d65f5b0065e02080c61fad93d57d6686383"
            },
            {
              "version": "f400e12656ab518be107febfe2315fb1eab5a342",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9e9fa5ad37c9cbad73c165c7ff1e76e650825e7c"
            },
            {
              "version": "f400e12656ab518be107febfe2315fb1eab5a342",
              "status": "affected",
              "versionType": "git",
              "lessThan": "01ee0bcc29864b78249308e8b35042b09bbf5fe3"
            },
            {
              "version": "f400e12656ab518be107febfe2315fb1eab5a342",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3b9499e7d677dd4366239a292238489a804936b2"
            },
            {
              "version": "f400e12656ab518be107febfe2315fb1eab5a342",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fdb24a820a5832ec4532273282cbd4f22c291a0d"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.29",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.29"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.167",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.77",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.17",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}