{
  "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-2026-23404",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23404",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-01T08:36:35.032Z",
    "updatedAt": "2026-05-11T22:06:15.286Z",
    "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: replace recursive profile removal with iterative approach",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: replace recursive profile removal with iterative approach\n\nThe profile removal code uses recursion when removing nested profiles,\nwhich can lead to kernel stack exhaustion and system crashes.\n\nReproducer:\n  $ pf='a'; for ((i=0; i<1024; i++)); do\n      echo -e \"profile $pf { \\n }\" | apparmor_parser -K -a;\n      pf=\"$pf//x\";\n  done\n  $ echo -n a > /sys/kernel/security/apparmor/.remove\n\nReplace the recursive __aa_profile_list_release() approach with an\niterative approach in __remove_profile(). The function repeatedly\nfinds and removes leaf profiles until the entire subtree is removed,\nmaintaining the same removal semantic without recursion.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ea854f032190cc9f26dc4a0e727090c89e55e342"
            },
            {
              "version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4fdc847b107321dec22bf8ecd6019b7af76d7886"
            },
            {
              "version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b36a04284d0208be94e5e401409caa00e2bf1be1"
            },
            {
              "version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
              "status": "affected",
              "versionType": "git",
              "lessThan": "33959a491e9fd557abfa5fce5ae4637d400915d3"
            },
            {
              "version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
              "status": "affected",
              "versionType": "git",
              "lessThan": "999bd704b0b641527a5ed46f0d969deff8cfa68b"
            },
            {
              "version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7eade846e013cbe8d2dc4a484463aa19e6515c7f"
            },
            {
              "version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a6a941a1294ac5abe22053dc501d25aed96e48fe"
            },
            {
              "version": "c88d4c7b049e87998ac0a9f455aa545cc895ef92",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ab09264660f9de5d05d1ef4e225aa447c63a8747"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.36",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.36"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}