{"id":"BIT-envoy-2023-35943","summary":"Envoy vulnerable to CORS filter segfault when origin header is removed ","details":"Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, the CORS filter will segfault and crash Envoy when the `origin` header is removed and deleted between `decodeHeaders`and `encodeHeaders`. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, do not remove the `origin` header in the Envoy configuration.","aliases":["CVE-2023-35943","GHSA-mc6h-6j9x-v3gq"],"modified":"2026-09-08T08:47:26.573025637Z","published":"2024-03-06T10:52:59.499Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-mc6h-6j9x-v3gq"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-35943"}],"affected":[{"package":{"name":"envoy","ecosystem":"Bitnami","purl":"pkg:bitnami/envoy"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.23.0"},{"fixed":"1.23.12"},{"introduced":"1.24.0"},{"fixed":"1.24.10"},{"introduced":"1.25.0"},{"fixed":"1.25.9"},{"introduced":"1.26.0"},{"fixed":"1.26.4"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/envoy/BIT-envoy-2023-35943.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"}