{
  "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-2026-23403",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23403",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-01T08:36:34.269Z",
    "updatedAt": "2026-05-11T22:06:14.098Z",
    "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": "apparmor: fix memory leak in verify_header",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix memory leak in verify_header\n\nThe function sets `*ns = NULL` on every call, leaking the namespace\nstring allocated in previous iterations when multiple profiles are\nunpacked. This also breaks namespace consistency checking since *ns\nis always NULL when the comparison is made.\n\nRemove the incorrect assignment.\nThe caller (aa_unpack) initializes *ns to NULL once before the loop,\nwhich is sufficient.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "dd51c84857630e77c139afe4d9bba65fc051dc3f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d678eb0fe55c9195d9a253e8c5b82a87b930737"
            },
            {
              "version": "dd51c84857630e77c139afe4d9bba65fc051dc3f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6b79abcb3c985e153fcf9d395e1d4336081aabc2"
            },
            {
              "version": "dd51c84857630e77c139afe4d9bba65fc051dc3f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bcf82c0c5a8b383fd2d5d8f3fd880cdcab2ac557"
            },
            {
              "version": "dd51c84857630e77c139afe4d9bba65fc051dc3f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "663ce34786e759ebcbeb3060685c20bcc886d51a"
            },
            {
              "version": "dd51c84857630e77c139afe4d9bba65fc051dc3f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "786e2c2a87d9c505f33321d1fd23a176aa8ddeb1"
            },
            {
              "version": "dd51c84857630e77c139afe4d9bba65fc051dc3f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4f0889f2df1ab99224a5e1ac4e20437eea5fe38e"
            },
            {
              "version": "dd51c84857630e77c139afe4d9bba65fc051dc3f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "42fd831abfc15d0643c14688f0522556b347e7e6"
            },
            {
              "version": "dd51c84857630e77c139afe4d9bba65fc051dc3f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e38c55d9f834e5b848bfed0f5c586aaf45acb825"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.12"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.169",
              "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": "6.18.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}