CVE-2026-23391 (GCVE-0-2026-23391)
Vulnerability from cvelistv5
Published
2026-03-25 10:33
Modified
2026-04-18 08:58
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_CT: drop pending enqueued packets on template removal Templates refer to objects that can go away while packets are sitting in nfqueue refer to: - helper, this can be an issue on module removal. - timeout policy, nfnetlink_cttimeout might remove it. The use of templates with zone and event cache filter are safe, since this just copies values. Flush these enqueued packets in case the template rule gets removed.
References
Impacted products
Vendor Product Version
Linux Linux Version: 24de58f465165298aaa8f286b2592f0163706cfe
Version: 24de58f465165298aaa8f286b2592f0163706cfe
Version: 24de58f465165298aaa8f286b2592f0163706cfe
Version: 24de58f465165298aaa8f286b2592f0163706cfe
Version: 24de58f465165298aaa8f286b2592f0163706cfe
Version: 24de58f465165298aaa8f286b2592f0163706cfe
Version: 24de58f465165298aaa8f286b2592f0163706cfe
Version: 24de58f465165298aaa8f286b2592f0163706cfe
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: xt_CT: drop pending enqueued packets on template removal\n\nTemplates refer to objects that can go away while packets are sitting in\nnfqueue refer to:\n\n- helper, this can be an issue on module removal.\n- timeout policy, nfnetlink_cttimeout might remove it.\n\nThe use of templates with zone and event cache filter are safe, since\nthis just copies values.\n\nFlush these enqueued packets in case the template rule gets removed."
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            "version": "3.1"
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        "dateUpdated": "2026-04-18T08:58:26.823Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/f62a218a946b19bb59abdd5361da85fa4606b96b"
        }
      ],
      "title": "netfilter: xt_CT: drop pending enqueued packets on template removal",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23391",
    "datePublished": "2026-03-25T10:33:15.677Z",
    "dateReserved": "2026-01-13T15:37:46.009Z",
    "dateUpdated": "2026-04-18T08:58:26.823Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}


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