{"api_version":"1","generated_at":"2026-08-24T14:38:40+00:00","cve":"CVE-2026-74625","urls":{"html":"https://cve.report/CVE-2026-74625","api":"https://cve.report/api/cve/CVE-2026-74625.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74625","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74625"},"summary":{"title":"netfilter: bridge: release template ct on non-IP path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bridge: release template ct on non-IP path\n\nA bridge nftables ct zone set rule can attach a conntrack template to\nan skb before nf_ct_bridge_pre() sees it. For non-IPv4 and non-IPv6\nEtherTypes, nf_ct_bridge_pre() currently overwrites skb->_nfct with\nIP_CT_UNTRACKED without releasing the existing template reference.\n\nThat makes the per-cpu template, and any temporary templates allocated\nfor concurrent use, unreachable and leaks memory until the host runs out\nof slab.\n\nReset the skb conntrack state before marking the frame untracked so the\nexisting template reference is dropped on the non-IP path.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:35","updated_at":"2026-08-22 16:16:35"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/fc90df37540627d092af770215fb4b7befe9409b","name":"https://git.kernel.org/stable/c/fc90df37540627d092af770215fb4b7befe9409b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6ea88401e10e04e0b3bb7a7adea54932fb60b93b","name":"https://git.kernel.org/stable/c/6ea88401e10e04e0b3bb7a7adea54932fb60b93b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bd7b16494dacf87e9336a1dcfdada83b9e40edd6","name":"https://git.kernel.org/stable/c/bd7b16494dacf87e9336a1dcfdada83b9e40edd6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c58d34fe8b7e47bb0b350a7625023b1261342be5","name":"https://git.kernel.org/stable/c/c58d34fe8b7e47bb0b350a7625023b1261342be5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f","name":"https://git.kernel.org/stable/c/d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7cff440d702616022769f2643168d7f9820547a0","name":"https://git.kernel.org/stable/c/7cff440d702616022769f2643168d7f9820547a0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/daa6e070f8e1e7a4dddec8b64ca37663f8cda917","name":"https://git.kernel.org/stable/c/daa6e070f8e1e7a4dddec8b64ca37663f8cda917","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd","name":"https://git.kernel.org/stable/c/46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74625","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74625","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c171f496ef57774f8e5d509923372549734877f fc90df37540627d092af770215fb4b7befe9409b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c171f496ef57774f8e5d509923372549734877f daa6e070f8e1e7a4dddec8b64ca37663f8cda917 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c171f496ef57774f8e5d509923372549734877f bd7b16494dacf87e9336a1dcfdada83b9e40edd6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3c171f496ef57774f8e5d509923372549734877f 6ea88401e10e04e0b3bb7a7adea54932fb60b93b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.152 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"74625","cve":"CVE-2026-74625","epss":"0.002200000","percentile":"0.127460000","score_date":"2026-08-23","updated_at":"2026-08-24 00:11:15"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bridge/netfilter/nf_conntrack_bridge.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fc90df37540627d092af770215fb4b7befe9409b","status":"affected","version":"3c171f496ef57774f8e5d509923372549734877f","versionType":"git"},{"lessThan":"daa6e070f8e1e7a4dddec8b64ca37663f8cda917","status":"affected","version":"3c171f496ef57774f8e5d509923372549734877f","versionType":"git"},{"lessThan":"bd7b16494dacf87e9336a1dcfdada83b9e40edd6","status":"affected","version":"3c171f496ef57774f8e5d509923372549734877f","versionType":"git"},{"lessThan":"6ea88401e10e04e0b3bb7a7adea54932fb60b93b","status":"affected","version":"3c171f496ef57774f8e5d509923372549734877f","versionType":"git"},{"lessThan":"46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd","status":"affected","version":"3c171f496ef57774f8e5d509923372549734877f","versionType":"git"},{"lessThan":"c58d34fe8b7e47bb0b350a7625023b1261342be5","status":"affected","version":"3c171f496ef57774f8e5d509923372549734877f","versionType":"git"},{"lessThan":"7cff440d702616022769f2643168d7f9820547a0","status":"affected","version":"3c171f496ef57774f8e5d509923372549734877f","versionType":"git"},{"lessThan":"d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f","status":"affected","version":"3c171f496ef57774f8e5d509923372549734877f","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/netfilter/nf_conntrack_bridge.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.3"},{"lessThan":"5.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.265","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.152","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.104","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.265","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.152","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"5.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bridge: release template ct on non-IP path\n\nA bridge nftables ct zone set rule can attach a conntrack template to\nan skb before nf_ct_bridge_pre() sees it. For non-IPv4 and non-IPv6\nEtherTypes, nf_ct_bridge_pre() currently overwrites skb->_nfct with\nIP_CT_UNTRACKED without releasing the existing template reference.\n\nThat makes the per-cpu template, and any temporary templates allocated\nfor concurrent use, unreachable and leaks memory until the host runs out\nof slab.\n\nReset the skb conntrack state before marking the frame untracked so the\nexisting template reference is dropped on the non-IP path."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:32:07.929Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/fc90df37540627d092af770215fb4b7befe9409b"},{"url":"https://git.kernel.org/stable/c/daa6e070f8e1e7a4dddec8b64ca37663f8cda917"},{"url":"https://git.kernel.org/stable/c/bd7b16494dacf87e9336a1dcfdada83b9e40edd6"},{"url":"https://git.kernel.org/stable/c/6ea88401e10e04e0b3bb7a7adea54932fb60b93b"},{"url":"https://git.kernel.org/stable/c/46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd"},{"url":"https://git.kernel.org/stable/c/c58d34fe8b7e47bb0b350a7625023b1261342be5"},{"url":"https://git.kernel.org/stable/c/7cff440d702616022769f2643168d7f9820547a0"},{"url":"https://git.kernel.org/stable/c/d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f"}],"title":"netfilter: bridge: release template ct on non-IP path","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74625","datePublished":"2026-08-22T15:32:07.929Z","dateReserved":"2026-08-15T05:44:03.921Z","dateUpdated":"2026-08-22T15:32:07.929Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:35","lastModifiedDate":"2026-08-22 16:16:35","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74625","Ordinal":"1","Title":"netfilter: bridge: release template ct on non-IP path","CVE":"CVE-2026-74625","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74625","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bridge: release template ct on non-IP path\n\nA bridge nftables ct zone set rule can attach a conntrack template to\nan skb before nf_ct_bridge_pre() sees it. For non-IPv4 and non-IPv6\nEtherTypes, nf_ct_bridge_pre() currently overwrites skb->_nfct with\nIP_CT_UNTRACKED without releasing the existing template reference.\n\nThat makes the per-cpu template, and any temporary templates allocated\nfor concurrent use, unreachable and leaks memory until the host runs out\nof slab.\n\nReset the skb conntrack state before marking the frame untracked so the\nexisting template reference is dropped on the non-IP path.","Type":"Description","Title":"netfilter: bridge: release template ct on non-IP path"}]}}}