{"id":"BIT-envoy-2021-39204","summary":"Excessive CPU usage in Pomerium","details":"Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead to high CPU utilization when a large number of streams are reset. This can result in a DoS condition. Pomerium versions 0.14.8 and 0.15.1 contain an upgraded envoy binary with this vulnerability patched.","aliases":["CVE-2021-39204","GHSA-5wjf-62hw-q78r"],"modified":"2026-09-08T08:45:12.499735739Z","published":"2024-03-06T10:57:21.991Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*","cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc"},{"type":"ADVISORY","url":"https://github.com/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78r"},{"type":"WEB","url":"https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39204"}],"affected":[{"package":{"name":"envoy","ecosystem":"Bitnami","purl":"pkg:bitnami/envoy"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.16.5"},{"introduced":"1.17.0"},{"fixed":"1.17.4"},{"introduced":"1.18.0"},{"fixed":"1.18.4"},{"introduced":"1.19.0"},{"fixed":"1.19.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/envoy/BIT-envoy-2021-39204.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}