{"api_version":"1","generated_at":"2026-04-19T01:09:20+00:00","cve":"CVE-2026-23391","urls":{"html":"https://cve.report/CVE-2026-23391","api":"https://cve.report/api/cve/CVE-2026-23391.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23391","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23391"},"summary":{"title":"netfilter: xt_CT: drop pending enqueued packets on template removal","description":"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 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pending enqueued packets on template removal","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","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","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-03-25 11:16:39","lastModifiedDate":"2026-04-18 09:16:23","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23391","Ordinal":"1","Title":"netfilter: xt_CT: drop pending enqueued packets on template remo","CVE":"CVE-2026-23391","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23391","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"netfilter: xt_CT: drop pending enqueued packets on template remo"}]}}}