{"id":"ECHO-495f-20f1-b39d","modified":"2026-09-17T08:45:04.941498462Z","published":"2026-09-17T08:05:27.486Z","upstream":["CVE-2019-0820","GHSA-cmhx-cq75-c4mj"],"references":[{"type":"WEB","url":"https://advisory.echohq.com/cve/CVE-2019-0820"},{"type":"WEB","url":"https://github.com/advisories/GHSA-cmhx-cq75-c4mj"}],"affected":[{"package":{"name":"System.Text.RegularExpressions","ecosystem":"Echo:NuGet","purl":"pkg:nuget/System.Text.RegularExpressions"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.0+echo.1"}]}],"database_specific":{"source":"https://advisory.echohq.com/osv/ECHO-495f-20f1-b39d.json"}}],"schema_version":"1.9.0"}