{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23139", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.972Z", "datePublished": "2026-02-14T15:22:24.059Z", "dateUpdated": "2026-02-14T15:22:24.059Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-02-14T15:22:24.059Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conncount: update last_gc only when GC has been performed\n\nCurrently last_gc is being updated everytime a new connection is\ntracked, that means that it is updated even if a GC wasn't performed.\nWith a sufficiently high packet rate, it is possible to always bypass\nthe GC, causing the list to grow infinitely.\n\nUpdate the last_gc value only when a GC has been actually performed."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_conncount.c"], "versions": [{"version": "f106694733c66a48740c25bc4e212e9b2ea364ce", "lessThan": "2c7c71113ed6d3e2f3aca4c088f22283016ff34f", "status": "affected", "versionType": "git"}, {"version": "be69850b461e7b491d87a22e33ab76fdd04b725e", "lessThan": "c4cde57c8affdcca5bcff53a1047e15d268bdca1", "status": "affected", "versionType": "git"}, {"version": "d265929930e2ffafc744c0ae05fb70acd53be1ee", "lessThan": "9f45588993d7f115280fc726119ca86fba32a811", "status": "affected", "versionType": "git"}, {"version": "d265929930e2ffafc744c0ae05fb70acd53be1ee", "lessThan": "3cd717359e56f82f06cbf8279b47a7d79880c6f3", "status": "affected", "versionType": "git"}, {"version": "d265929930e2ffafc744c0ae05fb70acd53be1ee", "lessThan": "26a82dce2beee39c43c109d9647e16f49cb02a35", "status": "affected", "versionType": "git"}, {"version": "d265929930e2ffafc744c0ae05fb70acd53be1ee", "lessThan": "8bdafdf4900040a81422056cabe5e00a37bd101a", "status": "affected", "versionType": "git"}, {"version": "d265929930e2ffafc744c0ae05fb70acd53be1ee", "lessThan": "7811ba452402d58628e68faedf38745b3d485e3c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_conncount.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.161", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.121", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.66", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.6", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.1.161"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.6.121"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.12.66"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.18.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2c7c71113ed6d3e2f3aca4c088f22283016ff34f"}, {"url": "https://git.kernel.org/stable/c/c4cde57c8affdcca5bcff53a1047e15d268bdca1"}, {"url": "https://git.kernel.org/stable/c/9f45588993d7f115280fc726119ca86fba32a811"}, {"url": "https://git.kernel.org/stable/c/3cd717359e56f82f06cbf8279b47a7d79880c6f3"}, {"url": "https://git.kernel.org/stable/c/26a82dce2beee39c43c109d9647e16f49cb02a35"}, {"url": "https://git.kernel.org/stable/c/8bdafdf4900040a81422056cabe5e00a37bd101a"}, {"url": "https://git.kernel.org/stable/c/7811ba452402d58628e68faedf38745b3d485e3c"}], "title": "netfilter: nf_conncount: update last_gc only when GC has been performed", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conncount: update last_gc only when GC has been performed\n\nCurrently last_gc is being updated everytime a new connection is\ntracked, that means that it is updated even if a GC wasn't performed.\nWith a sufficiently high packet rate, it is possible to always bypass\nthe GC, causing the list to grow infinitely.\n\nUpdate the last_gc value only when a GC has been actually performed."}], "id": "CVE-2026-23139", "lastModified": "2026-02-14T16:15:53.950", "metrics": {}, "published": "2026-02-14T16:15:53.950", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/26a82dce2beee39c43c109d9647e16f49cb02a35"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c7c71113ed6d3e2f3aca4c088f22283016ff34f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3cd717359e56f82f06cbf8279b47a7d79880c6f3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7811ba452402d58628e68faedf38745b3d485e3c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8bdafdf4900040a81422056cabe5e00a37bd101a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9f45588993d7f115280fc726119ca86fba32a811"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c4cde57c8affdcca5bcff53a1047e15d268bdca1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}