{
  "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-2026-89694",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89694",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:46:13.519Z",
    "updatedAt": "2026-10-19T08:51:07.514Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "nfsd: check client ownership when cancelling a copy-notify stateid",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: check client ownership when cancelling a copy-notify stateid\n\nOn the OFFLOAD_CANCEL path (clp != NULL), manage_cpntf_state() freed the\ntarget cpntf state without checking ownership. The lookup key\nst->si_opaque.so_id is allocated cyclically (guessable) and the embedded\nclientid is the fixed per-net nn->s2s_cp_cl_id, so any authenticated\nNFSv4.2 client could cancel and free another client's copy-notify\nstateid.\n\nCompare the creating clientid recorded in state->cp_p_clid against the\nrequesting client's cl_clientid and return nfserr_bad_stateid on a\nmismatch instead of freeing the entry.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838",
              "status": "affected",
              "versionType": "git",
              "lessThan": "88daaed26e17e1c7e851859b5bbb4f0e1ab6d0e9"
            },
            {
              "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838",
              "status": "affected",
              "versionType": "git",
              "lessThan": "81b2cfe767943922eca906a2a5af23a0ce5d0f35"
            },
            {
              "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6bba72b8ee68ad631b94bd439592cba46de54d7d"
            },
            {
              "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838",
              "status": "affected",
              "versionType": "git",
              "lessThan": "75268f6cfe26b09a7e4d3216367e87fe9e2a26aa"
            },
            {
              "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b1eca07303594ca27f5dc360a6946bd7e1f5b04c"
            },
            {
              "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b42dc26a14b4ad5d6daaada11ec4c70744141c25"
            },
            {
              "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d801906165cb5cc250d5cbe44935594e170be3e2"
            },
            {
              "version": "ce0887ac96d35c7105090e166bb0807dc0a0e838",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6bdbfab96e0cf25e5f57dac5c09dc1749751a4bf"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.6",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.6"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}