{"api_version":"1","generated_at":"2026-04-22T04:18:29+00:00","cve":"CVE-2026-23278","urls":{"html":"https://cve.report/CVE-2026-23278","api":"https://cve.report/api/cve/CVE-2026-23278.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23278","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23278"},"summary":{"title":"netfilter: nf_tables: always walk all pending catchall elements","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: always walk all pending catchall elements\n\nDuring transaction processing we might have more than one catchall element:\n1 live catchall element and 1 pending element that is coming as part of the\nnew batch.\n\nIf the map holding the catchall elements is also going away, its\nrequired to toggle all catchall elements and not just the first viable\ncandidate.\n\nOtherwise, we get:\n WARNING: ./include/net/netfilter/nf_tables.h:1281 at nft_data_release+0xb7/0xe0 [nf_tables], CPU#2: nft/1404\n RIP: 0010:nft_data_release+0xb7/0xe0 [nf_tables]\n [..]\n __nft_set_elem_destroy+0x106/0x380 [nf_tables]\n nf_tables_abort_release+0x348/0x8d0 [nf_tables]\n nf_tables_abort+0xcf2/0x3ac0 [nf_tables]\n nfnetlink_rcv_batch+0x9c9/0x20e0 [..]","state":"PUBLISHED","assigner":"Linux","published_at":"2026-03-20 09:16:13","updated_at":"2026-04-02 09:16:20"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"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"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/eb0948fa13298212c5f8b30ee48efdae4389ab09","name":"https://git.kernel.org/stable/c/eb0948fa13298212c5f8b30ee48efdae4389ab09","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/de47a88c6b807910f05703fb6605f7efdaa11417","name":"https://git.kernel.org/stable/c/de47a88c6b807910f05703fb6605f7efdaa11417","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/77c26b5056d693ffe5e9f040e946251cdb55ae55","name":"https://git.kernel.org/stable/c/77c26b5056d693ffe5e9f040e946251cdb55ae55","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9","name":"https://git.kernel.org/stable/c/7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23278","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23278","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 628bd3e49cba1c066228e23d71a852c23e26da73 eb0948fa13298212c5f8b30ee48efdae4389ab09 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 628bd3e49cba1c066228e23d71a852c23e26da73 de47a88c6b807910f05703fb6605f7efdaa11417 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 628bd3e49cba1c066228e23d71a852c23e26da73 77c26b5056d693ffe5e9f040e946251cdb55ae55 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 628bd3e49cba1c066228e23d71a852c23e26da73 7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bc9f791d2593f17e39f87c6e2b3a36549a3705b1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c7ec098e3b588434a8b07ea9b5b36f04cef1f50 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a136b7942ad2a50de708f76ea299ccb45ac7a7f9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d60be2da67d172aecf866302c91ea11533eca4d9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.78 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.19 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.9 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0-rc4 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"23278","cve":"CVE-2026-23278","epss":"0.000160000","percentile":"0.035180000","score_date":"2026-04-07","updated_at":"2026-04-08 00:03:40"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/netfilter/nf_tables_api.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"eb0948fa13298212c5f8b30ee48efdae4389ab09","status":"affected","version":"628bd3e49cba1c066228e23d71a852c23e26da73","versionType":"git"},{"lessThan":"de47a88c6b807910f05703fb6605f7efdaa11417","status":"affected","version":"628bd3e49cba1c066228e23d71a852c23e26da73","versionType":"git"},{"lessThan":"77c26b5056d693ffe5e9f040e946251cdb55ae55","status":"affected","version":"628bd3e49cba1c066228e23d71a852c23e26da73","versionType":"git"},{"lessThan":"7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9","status":"affected","version":"628bd3e49cba1c066228e23d71a852c23e26da73","versionType":"git"},{"status":"affected","version":"bc9f791d2593f17e39f87c6e2b3a36549a3705b1","versionType":"git"},{"status":"affected","version":"3c7ec098e3b588434a8b07ea9b5b36f04cef1f50","versionType":"git"},{"status":"affected","version":"a136b7942ad2a50de708f76ea299ccb45ac7a7f9","versionType":"git"},{"status":"affected","version":"25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8","versionType":"git"},{"status":"affected","version":"d60be2da67d172aecf866302c91ea11533eca4d9","versionType":"git"},{"status":"affected","version":"dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/netfilter/nf_tables_api.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.4"},{"lessThan":"6.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0-rc4","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.78","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.19","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.9","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0-rc4","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.316","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.262","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.188","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.121","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.36","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3.10","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: always walk all pending catchall elements\n\nDuring transaction processing we might have more than one catchall element:\n1 live catchall element and 1 pending element that is coming as part of the\nnew batch.\n\nIf the map holding the catchall elements is also going away, its\nrequired to toggle all catchall elements and not just the first viable\ncandidate.\n\nOtherwise, we get:\n WARNING: ./include/net/netfilter/nf_tables.h:1281 at nft_data_release+0xb7/0xe0 [nf_tables], CPU#2: nft/1404\n RIP: 0010:nft_data_release+0xb7/0xe0 [nf_tables]\n [..]\n __nft_set_elem_destroy+0x106/0x380 [nf_tables]\n nf_tables_abort_release+0x348/0x8d0 [nf_tables]\n nf_tables_abort+0xcf2/0x3ac0 [nf_tables]\n nfnetlink_rcv_batch+0x9c9/0x20e0 [..]"}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-04-02T08:39:38.613Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/eb0948fa13298212c5f8b30ee48efdae4389ab09"},{"url":"https://git.kernel.org/stable/c/de47a88c6b807910f05703fb6605f7efdaa11417"},{"url":"https://git.kernel.org/stable/c/77c26b5056d693ffe5e9f040e946251cdb55ae55"},{"url":"https://git.kernel.org/stable/c/7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9"}],"title":"netfilter: nf_tables: always walk all pending catchall elements","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23278","datePublished":"2026-03-20T08:08:58.566Z","dateReserved":"2026-01-13T15:37:45.991Z","dateUpdated":"2026-04-02T08:39:38.613Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-03-20 09:16:13","lastModifiedDate":"2026-04-02 09:16:20","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":"23278","Ordinal":"1","Title":"netfilter: nf_tables: always walk all pending catchall elements","CVE":"CVE-2026-23278","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23278","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: always walk all pending catchall elements\n\nDuring transaction processing we might have more than one catchall element:\n1 live catchall element and 1 pending element that is coming as part of the\nnew batch.\n\nIf the map holding the catchall elements is also going away, its\nrequired to toggle all catchall elements and not just the first viable\ncandidate.\n\nOtherwise, we get:\n WARNING: ./include/net/netfilter/nf_tables.h:1281 at nft_data_release+0xb7/0xe0 [nf_tables], CPU#2: nft/1404\n RIP: 0010:nft_data_release+0xb7/0xe0 [nf_tables]\n [..]\n __nft_set_elem_destroy+0x106/0x380 [nf_tables]\n nf_tables_abort_release+0x348/0x8d0 [nf_tables]\n nf_tables_abort+0xcf2/0x3ac0 [nf_tables]\n nfnetlink_rcv_batch+0x9c9/0x20e0 [..]","Type":"Description","Title":"netfilter: nf_tables: always walk all pending catchall elements"}]}}}