{"id":"ECHO-495f-20f1-b39d","upstream":["CVE-2019-0820","GHSA-cmhx-cq75-c4mj"],"severity":[],"modified":"2026-09-17T08:05:27.486Z","affected":[{"package":{"ecosystem":"Echo:NuGet","name":"System.Text.RegularExpressions","purl":"pkg:nuget/System.Text.RegularExpressions"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.0+echo.1"}]}]}],"references":[{"type":"WEB","url":"https://advisory.echohq.com/cve/CVE-2019-0820"},{"type":"WEB","url":"https://github.com/advisories/GHSA-cmhx-cq75-c4mj"}]}