{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73547", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-12T20:53:46.379Z", "datePublished": "2026-09-21T19:47:54.720Z", "dateUpdated": "2026-09-21T19:47:54.720Z"}, "containers": {"cna": {"title": "Envoy ext_authz: request `:path` pseudoheader dereferenced w/o null check", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-476", "lang": "en", "description": "CWE-476: NULL Pointer Dereference", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-87ph-jqwm-pg6r", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-87ph-jqwm-pg6r"}, {"name": "https://github.com/envoyproxy/envoy/commit/064af2e61d0d1c421490d9e3e6e643c5d117ffe4", "tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/commit/064af2e61d0d1c421490d9e3e6e643c5d117ffe4"}, {"name": "https://github.com/envoyproxy/envoy/commit/5f3b8e9b2b8a787a63202d35bb38820f3e9271fe", "tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/commit/5f3b8e9b2b8a787a63202d35bb38820f3e9271fe"}, {"name": "https://github.com/envoyproxy/envoy/commit/838f8ffd9d7b5217682a22ee33470d4c7afb7e98", "tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/commit/838f8ffd9d7b5217682a22ee33470d4c7afb7e98"}, {"name": "https://github.com/envoyproxy/envoy/commit/c3170d7c747e51bb8254378ea89afc03d3e71929", "tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/commit/c3170d7c747e51bb8254378ea89afc03d3e71929"}, {"name": "https://github.com/envoyproxy/envoy/releases/tag/v1.36.10", "tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.36.10"}, {"name": "https://github.com/envoyproxy/envoy/releases/tag/v1.37.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.37.6"}, {"name": "https://github.com/envoyproxy/envoy/releases/tag/v1.38.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.38.4"}, {"name": "https://github.com/envoyproxy/envoy/releases/tag/v1.39.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.39.1"}], "affected": [{"vendor": "envoyproxy", "product": "envoy", "versions": [{"version": "< 1.36.10", "status": "affected"}, {"version": ">= 1.37.0, < 1.37.6", "status": "affected"}, {"version": ">= 1.38.0, < 1.38.4", "status": "affected"}, {"version": ">= 1.39.0, < 1.39.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-21T19:47:54.720Z"}, "descriptions": [{"lang": "en", "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ext_authz filter assumes that a request contains a :path pseudoheader when applying query_parameters_to_set or query_parameters_to_remove from an authorization response. A path-less CONNECT request makes request_headers_->Path() return null, and Filter::onComplete dereferences that pointer while parsing the query string. An unauthenticated downstream client can crash the Envoy process when the filter and authorization response use query-parameter mutation. The relevant scope boundary is that the deployment must accept path-less CONNECT and configure ext_authz query-parameter mutation. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1."}], "source": {"advisory": "GHSA-87ph-jqwm-pg6r", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "envoy", "vendor": "envoyproxy", "versions": [{"status": "affected", "version": "< 1.36.10"}, {"status": "affected", "version": ">= 1.37.0, < 1.37.6"}, {"status": "affected", "version": ">= 1.38.0, < 1.38.4"}, {"status": "affected", "version": ">= 1.39.0, < 1.39.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ext_authz filter assumes that a request contains a :path pseudoheader when applying query_parameters_to_set or query_parameters_to_remove from an authorization response. A path-less CONNECT request makes request_headers_->Path() return null, and Filter::onComplete dereferences that pointer while parsing the query string. An unauthenticated downstream client can crash the Envoy process when the filter and authorization response use query-parameter mutation. The relevant scope boundary is that the deployment must accept path-less CONNECT and configure ext_authz query-parameter mutation. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1."}], "id": "CVE-2026-73547", "lastModified": "2026-09-21T20:17:28.230", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-21T20:17:28.230", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/commit/064af2e61d0d1c421490d9e3e6e643c5d117ffe4"}, {"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/commit/5f3b8e9b2b8a787a63202d35bb38820f3e9271fe"}, {"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/commit/838f8ffd9d7b5217682a22ee33470d4c7afb7e98"}, {"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/commit/c3170d7c747e51bb8254378ea89afc03d3e71929"}, {"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.36.10"}, {"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.37.6"}, {"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.38.4"}, {"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/releases/tag/v1.39.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-87ph-jqwm-pg6r"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-476"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{"bugzilla": {"description": "envoy: envoy: ext_authz crash on CONNECT requests without :path pseudo-header", "id": "2512089", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512089"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["No description is available for this CVE."], "name": "CVE-2026-73547", "package_state": [{"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Affected", "package_name": "openshift-service-mesh/istio-proxyv2-rhel9", "product_name": "OpenShift Service Mesh 3"}], "public_date": "2026-08-26T13:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-73547\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-73547"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 81.0, "source": "matching"}]}, "product": "envoy", "vendor": "envoyproxy"}], "created": "2026-09-01T14:30:18.132751+00:00", "updated": "2026-09-21T22:00:10.823099+00:00", "vendors": ["envoyproxy", "envoyproxy$PRODUCT$envoy"]}