{"id":"BIT-envoy-2025-46821","summary":"Envoy vulnerable to bypass of RBAC uri_template permission","details":"Envoy is a cloud-native edge/middle/service proxy. Prior to versions 1.34.1, 1.33.3, 1.32.6, and 1.31.8, Envoy's URI template matcher incorrectly excludes the `*` character from a set of valid characters in the URI path. As a result URI path containing the `*` character will not match a URI template expressions. This can result in bypass of RBAC rules when configured using the `uri_template` permissions. This vulnerability is fixed in Envoy versions v1.34.1, v1.33.3, v1.32.6, v1.31.8. As a workaround, configure additional RBAC permissions using `url_path` with `safe_regex` expression.","aliases":["CVE-2025-46821","GHSA-c7cm-838g-6g67"],"modified":"2026-09-08T08:47:31.848763679Z","published":"2025-05-09T05:41:53.497Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-c7cm-838g-6g67"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-46821"}],"affected":[{"package":{"name":"envoy","ecosystem":"Bitnami","purl":"pkg:bitnami/envoy"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.31.8"},{"introduced":"1.32.0"},{"fixed":"1.32.6"},{"introduced":"1.33.0"},{"fixed":"1.33.3"},{"introduced":"1.34.0"},{"fixed":"1.34.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/envoy/BIT-envoy-2025-46821.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}],"schema_version":"1.9.0"}