{
	"document":{
		"aggregate_severity":{
			"namespace":"https://nvd.nist.gov/vuln-metrics/cvss",
			"text":"HIGH"
		},
		"category":"csaf_vex",
		"csaf_version":"2.0",
		"distribution":{
			"tlp":{
				"label":"WHITE",
				"url":"https:/www.first.org/tlp/"
			}
		},
		"lang":"en",
		"notes":[
			{
				"text":"CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and DNS-over-gRPC request paths in plugin/pkg/doh/doh.go, core/dnsserver/server_quic.go, and core/dnsserver/server_grpc.go call dns.Msg.Unpack on attacker-controlled DNS section counts before dns.DefaultMsgAcceptFunc validates the fixed header. An unauthenticated client can use DNS name compression and excessive section counts to amplify allocation before the plugin chain, so plugin-level rate limiting cannot prevent concurrent requests from exhausting memory and terminating CoreDNS. The ordinary UDP and TCP listeners are not affected because they validate the header first. This issue is fixed in version 1.14.7.",
				"category":"general",
				"title":"Synopsis"
			}
		],
		"publisher":null,
		"references":[
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82399"
			},
			{
				"summary":"CVE-2026-82399 vex file",
				"category":"self",
				"url":"https://repo.openeuler.org/security/data/csaf/cve/2026/csaf-openeuler-cve-2026-82399.json"
			},
			{
				"summary":"openEuler-SA-2026-4197",
				"category":"self",
				"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4197"
			},
			{
				"summary":"CVE-2026-82399",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-82399&packageName=coredns"
			}
		],
		"title":"openEuler cve CVE-2026-82399",
		"tracking":{
			"initial_release_date":"2026-10-08T09:42:40+08:00",
			"revision_history":[
				{
					"date":"2026-10-08T09:42:40+08:00",
					"summary":"Initial",
					"number":"1.0.0"
				}
			],
			"generator":{
				"date":"2026-10-08T09:42:40+08:00",
				"engine":{
					"name":"openEuler CSAF Tool V1.0"
				}
			},
			"current_release_date":"2026-10-08T09:42:40+08:00",
			"id":"CVE-2026-82399",
			"version":"1.0.0",
			"status":"interim"
		}
	},
	"product_tree":{
		"branches":[
			{
				"name":"openEuler",
				"category":"vendor",
				"branches":[
					{
						"name":"openEuler",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
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									"product_id":"openEuler-22.03-LTS-SP4",
									"name":"openEuler-22.03-LTS-SP4"
								},
								"name":"openEuler-22.03-LTS-SP4",
								"category":"product_version"
							}
						],
						"category":"product_name"
					},
					{
						"name":"aarch64",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
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									},
									"product_id":"coredns-1.7.0-1.10.oe2203sp4.aarch64.rpm",
									"name":"coredns-1.7.0-1.10.oe2203sp4.aarch64.rpm"
								},
								"name":"coredns-1.7.0-1.10.oe2203sp4.aarch64.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
									},
									"product_id":"coredns-help-1.7.0-1.10.oe2203sp4.aarch64.rpm",
									"name":"coredns-help-1.7.0-1.10.oe2203sp4.aarch64.rpm"
								},
								"name":"coredns-help-1.7.0-1.10.oe2203sp4.aarch64.rpm",
								"category":"product_version"
							}
						],
						"category":"architecture"
					},
					{
						"name":"src",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
									},
									"product_id":"coredns-1.7.0-1.10.oe2203sp4.src.rpm",
									"name":"coredns-1.7.0-1.10.oe2203sp4.src.rpm"
								},
								"name":"coredns-1.7.0-1.10.oe2203sp4.src.rpm",
								"category":"product_version"
							}
						],
						"category":"architecture"
					},
					{
						"name":"x86_64",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
									},
									"product_id":"coredns-1.7.0-1.10.oe2203sp4.x86_64.rpm",
									"name":"coredns-1.7.0-1.10.oe2203sp4.x86_64.rpm"
								},
								"name":"coredns-1.7.0-1.10.oe2203sp4.x86_64.rpm",
								"category":"product_version"
							},
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
									},
									"product_id":"coredns-help-1.7.0-1.10.oe2203sp4.x86_64.rpm",
									"name":"coredns-help-1.7.0-1.10.oe2203sp4.x86_64.rpm"
								},
								"name":"coredns-help-1.7.0-1.10.oe2203sp4.x86_64.rpm",
								"category":"product_version"
							}
						],
						"category":"architecture"
					}
				]
			}
		],
		"relationships":[
			{
				"relates_to_product_reference":"openEuler-22.03-LTS-SP4",
				"product_reference":"coredns-1.7.0-1.10.oe2203sp4.aarch64.rpm",
				"full_product_name":{
					"product_id":"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.aarch64",
					"name":"coredns-1.7.0-1.10.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-22.03-LTS-SP4",
				"product_reference":"coredns-help-1.7.0-1.10.oe2203sp4.aarch64.rpm",
				"full_product_name":{
					"product_id":"openEuler-22.03-LTS-SP4:coredns-help-1.7.0-1.10.oe2203sp4.aarch64",
					"name":"coredns-help-1.7.0-1.10.oe2203sp4.aarch64 as a component of openEuler-22.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-22.03-LTS-SP4",
				"product_reference":"coredns-1.7.0-1.10.oe2203sp4.src.rpm",
				"full_product_name":{
					"product_id":"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.src",
					"name":"coredns-1.7.0-1.10.oe2203sp4.src as a component of openEuler-22.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-22.03-LTS-SP4",
				"product_reference":"coredns-1.7.0-1.10.oe2203sp4.x86_64.rpm",
				"full_product_name":{
					"product_id":"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.x86_64",
					"name":"coredns-1.7.0-1.10.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-22.03-LTS-SP4",
				"product_reference":"coredns-help-1.7.0-1.10.oe2203sp4.x86_64.rpm",
				"full_product_name":{
					"product_id":"openEuler-22.03-LTS-SP4:coredns-help-1.7.0-1.10.oe2203sp4.x86_64",
					"name":"coredns-help-1.7.0-1.10.oe2203sp4.x86_64 as a component of openEuler-22.03-LTS-SP4"
				},
				"category":"default_component_of"
			}
		]
	},
	"vulnerabilities":[
		{
			"cve":"CVE-2026-82399",
			"notes":[
				{
					"text":"CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and DNS-over-gRPC request paths in plugin/pkg/doh/doh.go, core/dnsserver/server_quic.go, and core/dnsserver/server_grpc.go call dns.Msg.Unpack on attacker-controlled DNS section counts before dns.DefaultMsgAcceptFunc validates the fixed header. An unauthenticated client can use DNS name compression and excessive section counts to amplify allocation before the plugin chain, so plugin-level rate limiting cannot prevent concurrent requests from exhausting memory and terminating CoreDNS. The ordinary UDP and TCP listeners are not affected because they validate the header first. This issue is fixed in version 1.14.7.",
					"category":"description",
					"title":"Vulnerability Description"
				}
			],
			"product_status":{
				"fixed":[
					"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.aarch64",
					"openEuler-22.03-LTS-SP4:coredns-help-1.7.0-1.10.oe2203sp4.aarch64",
					"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.src",
					"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.x86_64",
					"openEuler-22.03-LTS-SP4:coredns-help-1.7.0-1.10.oe2203sp4.x86_64"
				]
			},
			"remediations":[
				{
					"product_ids":[
						"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.aarch64",
						"openEuler-22.03-LTS-SP4:coredns-help-1.7.0-1.10.oe2203sp4.aarch64",
						"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.src",
						"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.x86_64",
						"openEuler-22.03-LTS-SP4:coredns-help-1.7.0-1.10.oe2203sp4.x86_64"
					],
					"details":"coredns security update",
					"category":"vendor_fix",
					"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4197"
				}
			],
			"scores":[
				{
					"cvss_v3":{
						"baseSeverity":"HIGH",
						"baseScore":7.5,
						"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
						"version":"3.1"
					},
					"products":[
						"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.aarch64",
						"openEuler-22.03-LTS-SP4:coredns-help-1.7.0-1.10.oe2203sp4.aarch64",
						"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.src",
						"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.x86_64",
						"openEuler-22.03-LTS-SP4:coredns-help-1.7.0-1.10.oe2203sp4.x86_64"
					]
				}
			],
			"threats":[
				{
					"details":"High",
					"category":"impact"
				}
			],
			"title":"CVE-2026-82399"
		}
	]
}