{"id":"CVE-2021-39162","details":"Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event. This can lead to a DoS in the presence of untrusted *upstream* servers. 0.15.1 contains an upgraded envoy binary with this vulnerability patched. If only trusted upstreams are configured, there is not substantial risk of this condition being triggered.","aliases":["BIT-envoy-2021-39162","GHSA-gjcg-vrxg-xmgv","GO-2022-0933"],"modified":"2026-08-07T19:47:05.221137Z","published":"2021-09-09T22:15:09.050Z","related":["GHSA-gjcg-vrxg-xmgv","GHSA-j374-mjrw-vvp8"],"references":[{"type":"ADVISORY","url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8"},{"type":"ADVISORY","url":"https://github.com/pomerium/pomerium/security/advisories/GHSA-gjcg-vrxg-xmgv"},{"type":"ADVISORY","url":"https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/envoyproxy/envoy","events":[{"introduced":"0"},{"fixed":"bef18019d8fc33a4ed6aca3679aff2100241ac5e"},{"introduced":"68fe53a889416fd8570506232052b06f5a531541"},{"last_affected":"68fe53a889416fd8570506232052b06f5a531541"}],"database_specific":{"cpe":["cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*","cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"0"},{"fixed":"1.18.4"},{"introduced":"1.19.0"},{"last_affected":"1.19.0"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["1.19.0","v1.19.0","v1.18.3","v1.18.2","v1.18.1","v1.18.0","v1.17.0","v1.16.0","v1.15.0","v1.14.0","v1.13.0","v1.12.0","v1.11.0","v1.10.0","v1.9.0","v1.8.0","v1.7.0","v1.6.0","v1.5.0","v1.4.0","v1.3.0","v1.2.0","v1.1.0","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39162.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/pomerium/pomerium","events":[{"introduced":"7692b2ac4966f2606e1cea376dd33a14c984d9c9"},{"last_affected":"7692b2ac4966f2606e1cea376dd33a14c984d9c9"}],"database_specific":{"extracted_events":[{"introduced":"0.15.0"},{"last_affected":"0.15.0"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:pomerium:pomerium:0.15.0:*:*:*:*:*:*:*"}}],"versions":["0.15.0","v0.15.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39162.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"}]}