{
	"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 security update",
				"category":"general",
				"title":"Synopsis"
			},
			{
				"text":"An update for coredns is now available for openEuler-22.03-LTS-SP4",
				"category":"general",
				"title":"Summary"
			},
			{
				"text":"CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins.\n\nSecurity Fix(es):\n\nCoreDNS 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.(CVE-2026-82399)\n\nCoreDNS 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 listeners in plugin/pkg/doh/doh.go, core/dnsserver/server_quic.go, and core/dnsserver/server_grpc.go call dns.Msg.Unpack without the dns.DefaultMsgAcceptFunc request policy used by UDP, TCP, and DNS-over-TLS. An unauthenticated client can send an RFC 2136 UPDATE that the proxy or forward plugin passes unchanged to an update-capable upstream. If that upstream trusts CoreDNS's source address or connection and does not require an attacker-unknown end-to-end TSIG, the request appears to originate from CoreDNS and can add, replace, or delete DNS records, redirect traffic, take over names, alter mail routing, or disrupt the writable zone. This issue is fixed in version 1.14.7.(CVE-2026-86003)",
				"category":"general",
				"title":"Description"
			},
			{
				"text":"An update for coredns is now available for openEuler-22.03-LTS-SP4.\n\nopenEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.",
				"category":"general",
				"title":"Topic"
			},
			{
				"text":"High",
				"category":"general",
				"title":"Severity"
			},
			{
				"text":"coredns",
				"category":"general",
				"title":"Affected Component"
			}
		],
		"publisher":{
			"issuing_authority":"openEuler security committee",
			"name":"openEuler",
			"namespace":"https://www.openeuler.org",
			"contact_details":"openeuler-security@openeuler.org",
			"category":"vendor"
		},
		"references":[
			{
				"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"
			},
			{
				"summary":"CVE-2026-86003",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-86003&packageName=coredns"
			},
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82399"
			},
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86003"
			},
			{
				"summary":"openEuler-SA-2026-4197 vex file",
				"category":"self",
				"url":"https://repo.openeuler.org/security/data/csaf/advisories/2026/csaf-openeuler-sa-2026-4197.json"
			}
		],
		"title":"An update for coredns is now available for openEuler-22.03-LTS-SP4",
		"tracking":{
			"initial_release_date":"2026-10-08T09:39:32+08:00",
			"revision_history":[
				{
					"date":"2026-10-08T09:39:32+08:00",
					"summary":"Initial",
					"number":"1.0.0"
				}
			],
			"generator":{
				"date":"2026-10-08T09:39:32+08:00",
				"engine":{
					"name":"openEuler CSAF Tool V1.0"
				}
			},
			"current_release_date":"2026-10-08T09:39:32+08:00",
			"id":"openEuler-SA-2026-4197",
			"version":"1.0.0",
			"status":"final"
		}
	},
	"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":{
										"cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4"
									},
									"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"
		},
		{
			"cve":"CVE-2026-86003",
			"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 listeners in plugin/pkg/doh/doh.go, core/dnsserver/server_quic.go, and core/dnsserver/server_grpc.go call dns.Msg.Unpack without the dns.DefaultMsgAcceptFunc request policy used by UDP, TCP, and DNS-over-TLS. An unauthenticated client can send an RFC 2136 UPDATE that the proxy or forward plugin passes unchanged to an update-capable upstream. If that upstream trusts CoreDNS's source address or connection and does not require an attacker-unknown end-to-end TSIG, the request appears to originate from CoreDNS and can add, replace, or delete DNS records, redirect traffic, take over names, alter mail routing, or disrupt the writable zone. 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",
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				]
			},
			"remediations":[
				{
					"product_ids":[
						"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.aarch64",
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						"openEuler-22.03-LTS-SP4:coredns-1.7.0-1.10.oe2203sp4.src",
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						"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:H/A:N",
						"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-2026-86003"
		}
	]
}