{"schema_version":"2","view":"grouped","data":[{"id":3328,"cve_ids":["CVE-2026-73551"],"payload":{"kind":"advisory","title":"Envoy: Path normalization does not handle dot and dotdot segments with parameters","summary":"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 URL normalization does not recognize dot and dotdot path segments when they carry semicolon parameters. A request such as /user/..;foo=bar/admin is therefore not canonicalized to /admin even when path normalization is enabled. If an upstream interprets the segment according to RFC 3986 while Envoy applies routing or RBAC to the uncollapsed path, a remote client can cause path confusion and bypass path-based security policy. The relevant scope boundary is that the security consequence depends on a downstream/upstream path interpretation mismatch or a path-based Envoy decision. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.","evidence":"cve:CVE-2026-73551","products":[{"name":{"value":"envoy","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"medium","structured":{"id":"CVE-2026-73551","aliases":["CVE-2026-73551"],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}}],"affected":[{"vendor":"envoyproxy","product":"envoy","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"}]}],"modified":"2026-09-28T20:41:32.313Z","provider":"cve","references":["https://github.com/envoyproxy/envoy/security/advisories/GHSA-2w8w-rfw7-8gg4","https://github.com/envoyproxy/envoy/commit/28b6d60a6d96edeece121cac5be701eb46cc7f24","https://github.com/envoyproxy/envoy/commit/d40a68b0a30a003c4e0a9fd3af637f828b52c37b","https://github.com/envoyproxy/envoy/commit/e9d6c329f9a3ff19432bf39b60c601df7e3eda33","https://github.com/envoyproxy/envoy/commit/f74d1107c4f5c9679b66f7a03a6c5b75ddde1989","https://github.com/envoyproxy/envoy/releases/tag/v1.36.10","https://github.com/envoyproxy/envoy/releases/tag/v1.37.6","https://github.com/envoyproxy/envoy/releases/tag/v1.38.4","https://github.com/envoyproxy/envoy/releases/tag/v1.39.1"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-73551","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-28T20:41:24.834794Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-28T20:41:32.313Z"}}],"cna":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-21T20:17:02.620Z"}}},"related_cves":[{"value":"CVE-2026-73551","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"},"group_id":"advisory:f40eebb9-dfa7-4fb7-86e2-813ab78258d7","priority":{"reasons":[],"severity":"medium","linked_cves":[],"fix_available":false,"known_exploited":false,"publisher_severity":"medium"},"revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-73551","advisory_id":"f40eebb9-dfa7-4fb7-86e2-813ab78258d7","event_types":["advisory"],"published_at":"2026-10-24T21:33:46.615952+00:00","technologies":["core-cve","envoy"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-09-21T20:17:02.62+00:00","detail_url":"/advisories/advisory%3Af40eebb9-dfa7-4fb7-86e2-813ab78258d7","group":{"id":"advisory:f40eebb9-dfa7-4fb7-86e2-813ab78258d7","revision":1,"primary_event_id":3341,"change":"published","superseded_by":[],"changed":{"id":3341,"cve_ids":["CVE-2026-73551"],"payload":{"kind":"advisory","title":"Envoy: Path normalization does not handle dot and dotdot segments with parameters","summary":"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 URL normalization does not recognize dot and dotdot path segments when they carry semicolon parameters. A request such as /user/..;foo=bar/admin is therefore not canonicalized to /admin even when path normalization is enabled. If an upstream interprets the segment according to RFC 3986 while Envoy applies routing or RBAC to the uncollapsed path, a remote client can cause path confusion and bypass path-based security policy. The relevant scope boundary is that the security consequence depends on a downstream/upstream path interpretation mismatch or a path-based Envoy decision. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.","evidence":"cve:CVE-2026-73551","products":[{"name":{"value":"envoy","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"medium","structured":{"id":"CVE-2026-73551","aliases":["CVE-2026-73551"],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}}],"affected":[{"vendor":"envoyproxy","product":"envoy","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"}]}],"modified":"2026-09-28T20:41:32.313Z","provider":"cve","references":["https://github.com/envoyproxy/envoy/security/advisories/GHSA-2w8w-rfw7-8gg4","https://github.com/envoyproxy/envoy/commit/28b6d60a6d96edeece121cac5be701eb46cc7f24","https://github.com/envoyproxy/envoy/commit/d40a68b0a30a003c4e0a9fd3af637f828b52c37b","https://github.com/envoyproxy/envoy/commit/e9d6c329f9a3ff19432bf39b60c601df7e3eda33","https://github.com/envoyproxy/envoy/commit/f74d1107c4f5c9679b66f7a03a6c5b75ddde1989","https://github.com/envoyproxy/envoy/releases/tag/v1.36.10","https://github.com/envoyproxy/envoy/releases/tag/v1.37.6","https://github.com/envoyproxy/envoy/releases/tag/v1.38.4","https://github.com/envoyproxy/envoy/releases/tag/v1.39.1"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-73551","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-28T20:41:24.834794Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-28T20:41:32.313Z"}}],"cna":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-21T20:17:02.620Z"}}},"related_cves":[{"value":"CVE-2026-73551","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"},"group_id":"advisory:f40eebb9-dfa7-4fb7-86e2-813ab78258d7","priority":{"reasons":[],"severity":"medium","linked_cves":[],"fix_available":false,"known_exploited":false,"publisher_severity":"medium"},"revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-73551","advisory_id":"f40eebb9-dfa7-4fb7-86e2-813ab78258d7","event_types":["advisory"],"published_at":"2026-10-24T21:33:46.615952+00:00","technologies":["core-cve","envoy"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-09-21T20:17:02.62+00:00","detail_url":"/events/3341"},"members":[{"id":3341,"cve_ids":["CVE-2026-73551"],"payload":{"kind":"advisory","title":"Envoy: Path normalization does not handle dot and dotdot segments with parameters","summary":"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 URL normalization does not recognize dot and dotdot path segments when they carry semicolon parameters. A request such as /user/..;foo=bar/admin is therefore not canonicalized to /admin even when path normalization is enabled. If an upstream interprets the segment according to RFC 3986 while Envoy applies routing or RBAC to the uncollapsed path, a remote client can cause path confusion and bypass path-based security policy. The relevant scope boundary is that the security consequence depends on a downstream/upstream path interpretation mismatch or a path-based Envoy decision. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.","evidence":"cve:CVE-2026-73551","products":[{"name":{"value":"envoy","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"medium","structured":{"id":"CVE-2026-73551","aliases":["CVE-2026-73551"],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}}],"affected":[{"vendor":"envoyproxy","product":"envoy","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"}]}],"modified":"2026-09-28T20:41:32.313Z","provider":"cve","references":["https://github.com/envoyproxy/envoy/security/advisories/GHSA-2w8w-rfw7-8gg4","https://github.com/envoyproxy/envoy/commit/28b6d60a6d96edeece121cac5be701eb46cc7f24","https://github.com/envoyproxy/envoy/commit/d40a68b0a30a003c4e0a9fd3af637f828b52c37b","https://github.com/envoyproxy/envoy/commit/e9d6c329f9a3ff19432bf39b60c601df7e3eda33","https://github.com/envoyproxy/envoy/commit/f74d1107c4f5c9679b66f7a03a6c5b75ddde1989","https://github.com/envoyproxy/envoy/releases/tag/v1.36.10","https://github.com/envoyproxy/envoy/releases/tag/v1.37.6","https://github.com/envoyproxy/envoy/releases/tag/v1.38.4","https://github.com/envoyproxy/envoy/releases/tag/v1.39.1"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-73551","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-28T20:41:24.834794Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-28T20:41:32.313Z"}}],"cna":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-21T20:17:02.620Z"}}},"related_cves":[{"value":"CVE-2026-73551","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"},"group_id":"advisory:f40eebb9-dfa7-4fb7-86e2-813ab78258d7","priority":{"reasons":[],"severity":"medium","linked_cves":[],"fix_available":false,"known_exploited":false,"publisher_severity":"medium"},"revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-73551","advisory_id":"f40eebb9-dfa7-4fb7-86e2-813ab78258d7","event_types":["advisory"],"published_at":"2026-10-24T21:33:46.615952+00:00","technologies":["core-cve","envoy"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-09-21T20:17:02.62+00:00","detail_url":"/events/3341"}]}}],"next_after":3328,"next_before":3328}