{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31679", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.130Z", "datePublished": "2026-04-25T08:46:55.584Z", "dateUpdated": "2026-04-25T08:46:55.584Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-25T08:46:55.584Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nopenvswitch: validate MPLS set/set_masked payload length\n\nvalidate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for\nSET/SET_MASKED actions. In action handling, OVS expects fixed-size\nMPLS key data (struct ovs_key_mpls).\n\nUse the already normalized key_len (masked case included) and reject\nnon-matching MPLS action key sizes.\n\nReject invalid MPLS action payload lengths early."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/openvswitch/flow_netlink.c"], "versions": [{"version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3", "lessThan": "68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f", "status": "affected", "versionType": "git"}, {"version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3", "lessThan": "4cae986225f8b8679ad86b924918e7d75a96aa61", "status": "affected", "versionType": "git"}, {"version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3", "lessThan": "8ed7b9930cbc3bc71f868fa79a68700ac88d586a", "status": "affected", "versionType": "git"}, {"version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3", "lessThan": "c1f97152df8dfb17e855ddf0fc409b7bd13e9700", "status": "affected", "versionType": "git"}, {"version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3", "lessThan": "98de18d327ef8cbbb704980e359e4872d8c28997", "status": "affected", "versionType": "git"}, {"version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3", "lessThan": "bd50c7484c3bb34097571c1334174fb8b7408036", "status": "affected", "versionType": "git"}, {"version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3", "lessThan": "2ca33b88a79ca42f017ae0f7011280325655438e", "status": "affected", "versionType": "git"}, {"version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3", "lessThan": "546b68ac893595877ffbd7751e5c55fd1c43ede6", "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/openvswitch/flow_netlink.c"], "versions": [{"version": "5.5", "status": "affected"}, {"version": "0", "lessThan": "5.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.168", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.131", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.80", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.21", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.11", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "5.5", "versionEndExcluding": "5.10.253"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.203"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.6.131"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.12.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.18.21"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.19.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f"}, {"url": "https://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61"}, {"url": "https://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a"}, {"url": "https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700"}, {"url": "https://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997"}, {"url": "https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036"}, {"url": "https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e"}, {"url": "https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6"}], "title": "openvswitch: validate MPLS set/set_masked payload length", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nopenvswitch: validate MPLS set/set_masked payload length\n\nvalidate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for\nSET/SET_MASKED actions. In action handling, OVS expects fixed-size\nMPLS key data (struct ovs_key_mpls).\n\nUse the already normalized key_len (masked case included) and reject\nnon-matching MPLS action key sizes.\n\nReject invalid MPLS action payload lengths early."}], "id": "CVE-2026-31679", "lastModified": "2026-04-25T09:16:01.550", "metrics": {}, "published": "2026-04-25T09:16:01.550", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}