{
  "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-2026-45983",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-45983",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-27T12:18:41.619Z",
    "updatedAt": "2026-05-27T12:18:41.619Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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: never defer requests during idmap lookup",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: never defer requests during idmap lookup\n\nDuring v4 request compound arg decoding, some ops (e.g. SETATTR)\ncan trigger idmap lookup upcalls. When those upcall responses get\ndelayed beyond the allowed time limit, cache_check() will mark the\nrequest for deferral and cause it to be dropped.\n\nThis prevents nfs4svc_encode_compoundres from being executed, and\nthus the session slot flag NFSD4_SLOT_INUSE never gets cleared.\nSubsequent client requests will fail with NFSERR_JUKEBOX, given\nthat the slot will be marked as in-use, making the SEQUENCE op\nfail.\n\nFix this by making sure that the RQ_USEDEFERRAL flag is always\nclear during nfs4svc_decode_compoundargs(), since no v4 request\nshould ever be deferred.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2f425878b6a71571341dcd3f9e9d1a6f6355da9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b9abb760db20504240a7147f27934d900cd80b23"
            },
            {
              "version": "2f425878b6a71571341dcd3f9e9d1a6f6355da9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3a72c7dedc99b321e0f267e4e999e5baf07c4593"
            },
            {
              "version": "2f425878b6a71571341dcd3f9e9d1a6f6355da9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "99e17b20fddac19a228d213e00f6b9e1c10daff9"
            },
            {
              "version": "2f425878b6a71571341dcd3f9e9d1a6f6355da9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "243f71ed873ff3feeb6f9b5cb145d63f7188b4c4"
            },
            {
              "version": "2f425878b6a71571341dcd3f9e9d1a6f6355da9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "063a6f22478ef929625000a2caf54667725c1dfd"
            },
            {
              "version": "2f425878b6a71571341dcd3f9e9d1a6f6355da9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d75ec4504a4340b033b15cad0303988b3089dd93"
            },
            {
              "version": "2f425878b6a71571341dcd3f9e9d1a6f6355da9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8dff54fe88c0dcd4c55bff9fc2fa6ca968290826"
            },
            {
              "version": "2f425878b6a71571341dcd3f9e9d1a6f6355da9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f9c206cdc4266caad6a9a7f46341420a10f03ccb"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.30",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.30"
            },
            {
              "version": "5.10.252",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.202",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.165",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.128",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.75",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}