246 lines
10 KiB
JSON
246 lines
10 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-47220",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-18T22:25:21.258Z",
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"datePublished": "2026-06-26T18:02:17.679Z",
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"dateUpdated": "2026-07-15T00:49:05.154Z"
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},
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"containers": {
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"cna": {
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"title": "Envoy: Segmentation fault when using %REQUESTED_SERVER_NAME% in log format",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-476",
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"lang": "en",
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"description": "CWE-476: NULL Pointer Dereference",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j9wh-4qfm-wf2v",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j9wh-4qfm-wf2v"
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}
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],
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"affected": [
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{
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"vendor": "envoyproxy",
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"product": "envoy",
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"versions": [
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{
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"version": ">= 1.38.0, < 1.38.3",
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"status": "affected"
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},
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{
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"version": ">= 1.37.0, < 1.37.5",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-06-26T18:02:17.679Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTED_SERVER_NAME(X:Y)% is used in log format and host related options is specified, like HOST_FIRST, SNI_FIRST, it's possible to crash Envoy when the specified host header is missing in the request headers. This vulnerability is fixed in 1.37.5 and 1.38.3."
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}
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],
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"source": {
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"advisory": "GHSA-j9wh-4qfm-wf2v",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j9wh-4qfm-wf2v",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-29T13:26:27.302143Z",
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"id": "CVE-2026-47220",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-29T13:26:30.243Z"
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}
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},
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{
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"affected": [
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{
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"cpes": [
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"cpe:/a:redhat:service_mesh:2"
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],
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"defaultStatus": "unaffected",
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"packageName": "openshift-service-mesh/proxyv2-rhel9",
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"product": "OpenShift Service Mesh 2",
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"vendor": "Red Hat"
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},
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{
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"cpes": [
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"cpe:/a:redhat:service_mesh:3"
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],
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"defaultStatus": "unaffected",
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"packageName": "openshift-service-mesh/istio-proxyv2-rhel9",
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"product": "OpenShift Service Mesh 3",
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"vendor": "Red Hat"
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}
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],
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"datePublic": "2026-06-26T18:02:17.679Z",
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"descriptions": [
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{
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"lang": "en",
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"value": "A flaw was found in Envoy. A remote attacker can exploit this vulnerability by sending a request with a missing host header when the `%REQUESTED_SERVER_NAME(X:Y)%` is used in the log format and host-related options, such as HOST_FIRST or SNI_FIRST, are specified. This can lead to a crash of the Envoy proxy, resulting in a Denial of Service (DoS)."
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}
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],
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"metrics": [
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{
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"other": {
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"content": {
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"namespace": "https://access.redhat.com/security/updates/classification/",
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"value": "Important"
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},
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"type": "Red Hat severity rating"
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}
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},
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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},
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"format": "CVSS"
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-476",
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"description": "NULL Pointer Dereference",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"references": [
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{
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"tags": [
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"vdb-entry",
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"x_refsource_REDHAT"
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],
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"url": "https://access.redhat.com/security/cve/CVE-2026-47220"
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},
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{
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"name": "RHBZ#2493652",
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"tags": [
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"issue-tracking",
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"x_refsource_REDHAT"
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],
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493652"
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},
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{
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"tags": [
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"x_sadp-csaf-vex"
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],
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"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47220.json"
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}
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],
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"timeline": [
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{
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"lang": "en",
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"time": "2026-06-26T19:01:34.167Z",
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"value": "Reported to Red Hat."
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},
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{
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"lang": "en",
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"time": "2026-06-26T18:02:17.679Z",
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"value": "Made public."
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}
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],
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"title": "envoy: Envoy: Denial of Service via missing host header in specific logging configurations",
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"x_adpType": "supplier",
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"x_generator": {
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"engine": "sadp-cli 1.0.0"
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},
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"providerMetadata": {
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"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
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"shortName": "redhat-SADP",
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"dateUpdated": "2026-07-15T00:49:05.154Z"
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}
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}
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]
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}
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} |