{"id":"CVE-2021-28682","details":"An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.","aliases":["BIT-envoy-2021-28682","GHSA-r22g-5f3x-xjgg"],"modified":"2026-08-07T16:49:54.147643Z","published":"2021-05-20T17:15:07.680Z","references":[{"type":"ADVISORY","url":"https://blog.envoyproxy.io"},{"type":"ADVISORY","url":"https://github.com/envoyproxy/envoy/releases"},{"type":"ADVISORY","url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjgg"},{"type":"EVIDENCE","url":"https://github.com/envoyproxy/envoy/blob/15e3b9dbcc9aaa9d391fa8033904aad1ea1ae70d/api/envoy/api/v2/cluster.proto#L36"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/envoyproxy/envoy","events":[{"introduced":"ca0d61134a84ce644c7f46549a06a99579fb97c0"},{"last_affected":"d6a4496e712d7a2335b26e2f76210d5904002c26"}],"database_specific":{"cpe":["cpe:2.3:a:envoyproxy:envoy:1.14.6:*:*:*:*:*:*:*","cpe:2.3:a:envoyproxy:envoy:1.15.3:*:*:*:*:*:*:*","cpe:2.3:a:envoyproxy:envoy:1.16.2:*:*:*:*:*:*:*","cpe:2.3:a:envoyproxy:envoy:1.17.1:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.14.6"},{"last_affected":"1.14.6"},{"introduced":"1.15.3"},{"last_affected":"1.15.3"},{"introduced":"1.16.2"},{"last_affected":"1.16.2"},{"introduced":"1.17.1"},{"last_affected":"1.17.1"}],"source":"CPE_STRING"}}],"versions":["1.14.6","1.15.3","1.16.2","1.17.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28682.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}