{"id":"CVE-2026-73513","revision":null,"records":[{"revision":"70921234b5d645d5ac54fd5d1d2a39c9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-73513","aliases":[],"title":"Envoy: oghttp2 upstream trailers incorrect handling","description":"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 optional oghttp2 upstream HTTP/2 codec accepts a response trailer HEADERS frame without END_STREAM. Envoy completes and deferred-deletes the ActiveRequest while oghttp2 keeps the stream open, leaving ClientStreamImpl with a dangling response_decoder_ reference. A later frame on the stream can dispatch through the freed object and crash the process. The relevant scope boundary is that the default nghttp2 codec rejects the malformed trailers, and the trigger is upstream-only with oghttp2 enabled. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.","state":0,"publishedAt":"2026-09-21T19:40:49.119+00:00","modifiedAt":"2026-09-28T20:38:56.917+00:00","affected":[{"ecosystem":"Vendor product","name":"envoy","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"envoyproxy\",\n                    \"product\": \"envoy\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.36.10\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.37.0, < 1.37.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.38.0, < 1.38.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.39.0, < 1.39.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/envoyproxy/envoy/security/advisories/GHSA-jjmm-fw8p-crpw","https://github.com/envoyproxy/envoy/commit/0d33268d7d8cdc5c8ffef462e0cceefa56156b72","https://github.com/envoyproxy/envoy/commit/3df69eeee220d6a4088cfdd3be79b55e2e6d3514","https://github.com/envoyproxy/envoy/commit/c4610b6c85d72ed01e014c2a1aba2934a2b774e9","https://github.com/envoyproxy/envoy/commit/e6963c6b64cd62aa8e078ef17c76052b6e33e82b","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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-73513","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-73513","identifiers":["CVE-2026-73513"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-570328139368428ca550af1570d01579","complete":true,"records":13760,"lastAttemptAt":"2026-11-12T07:55:38.9446123+00:00","lastSuccessAt":"2026-11-12T06:55:06.923+00:00","error":null,"lastVerifiedAt":"2026-11-12T06:55:06.923+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-12T07:54:58.2349119+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-12T07:54:58.2349119+00:00","lastSuccessAt":"2026-11-12T07:54:58.4862124+00:00","error":null,"lastVerifiedAt":"2026-11-12T07:54:58.4862143+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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