{
  "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-2026-63919",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-63919",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-19T14:55:22.121Z",
    "updatedAt": "2026-10-19T20:17:56.102Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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": "xfrm: input: hold netns during deferred transport reinjection",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: input: hold netns during deferred transport reinjection\n\nTransport-mode reinjection stores a struct net pointer in skb->cb and\nuses it later from xfrm_trans_reinject(). That pointer must stay valid\nuntil the deferred callback runs.\n\nTake a netns reference when queueing deferred reinjection work and drop\nit after the callback completes. Use maybe_get_net() so the queueing\npath does not revive a namespace that is already being torn down.\n\nThis keeps the existing workqueue design and fixes the netns lifetime\nhandling in one place for all users of xfrm_trans_queue_net().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7b3801927e52f8621de311277f7fc727635019e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7ee59eda8820b758ed29e1cd3222359c7b97302c"
            },
            {
              "version": "7b3801927e52f8621de311277f7fc727635019e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2df7059a18afb7d3aee6c36cad5d371c198111d4"
            },
            {
              "version": "7b3801927e52f8621de311277f7fc727635019e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8dfabcba6a943a7a02ebe1e1637c361ba96acbaa"
            },
            {
              "version": "7b3801927e52f8621de311277f7fc727635019e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "48ce101cd630d6745b6923b5bad8358bc4c119da"
            },
            {
              "version": "7b3801927e52f8621de311277f7fc727635019e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "55ddfc41451f01c588089cd74957a05311b6f202"
            },
            {
              "version": "7b3801927e52f8621de311277f7fc727635019e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9f7ebb45a83afc3216e855e57d51bb4bc9b5232e"
            },
            {
              "version": "7b3801927e52f8621de311277f7fc727635019e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9f67a36e91bb50d358760f381f233913fe5c09f8"
            },
            {
              "version": "7b3801927e52f8621de311277f7fc727635019e7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c16f74dc1d75d0e2e7670076d5375deda110ebeb"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.6",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.6"
            },
            {
              "version": "5.10.259",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.210",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.176",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.93",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.35",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}