{"schema_version":"1.3.1","id":"GO-2026-5981","modified":"2026-07-17T19:42:05Z","published":"2026-07-17T19:42:05Z","aliases":["GHSA-mqxv-9rm6-w8qc"],"summary":"Ech0: ParseAcceptLanguage `_` separator bypass enables ~70x CPU amplification via Accept-Language header in i18n.Middleware in github.com/lin-snow/ech0","details":"Ech0: ParseAcceptLanguage `_` separator bypass enables ~70x CPU amplification via Accept-Language header in i18n.Middleware in github.com/lin-snow/ech0","affected":[{"package":{"name":"github.com/lin-snow/ech0","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{}}],"references":[{"type":"ADVISORY","url":"https://github.com/lin-snow/Ech0/security/advisories/GHSA-mqxv-9rm6-w8qc"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-5981","review_status":"UNREVIEWED"}}