{"id":"GO-2026-6875","summary":"Reverse Proxy Forwards Attacker-Supplied X-Real-IP to Upstream by Default in github.com/labstack/echo","details":"Reverse Proxy Forwards Attacker-Supplied X-Real-IP to Upstream by Default in github.com/labstack/echo","aliases":["CVE-2026-118651","GHSA-99jh-6h7p-pp36"],"modified":"2026-11-05T23:15:15.563594538Z","published":"2026-11-05T22:54:32Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-6875","review_status":"REVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/labstack/echo/security/advisories/GHSA-99jh-6h7p-pp36"},{"type":"FIX","url":"https://github.com/labstack/echo/commit/fc410094b2f3415cf2bf5204082137b205bfd5af"},{"type":"WEB","url":"https://github.com/labstack/echo/releases/tag/v5.4.0"}],"affected":[{"package":{"name":"github.com/labstack/echo/v4","ecosystem":"Go","purl":"pkg:golang/github.com/labstack/echo/v4"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6875.json"}},{"package":{"name":"github.com/labstack/echo/v5","ecosystem":"Go","purl":"pkg:golang/github.com/labstack/echo/v5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.4.0"}]}],"ecosystem_specific":{"imports":[{"symbols":["Context.JSONPBlob","Context.Scheme","Context.jsonPBlob","NewWithConfig","StaticDirectoryHandler","isValidProto","sanitizeURI"],"path":"github.com/labstack/echo/v5"},{"symbols":["MethodOverrideConfig.ToMiddleware","ProxyConfig.ToMiddleware","SecureConfig.ToMiddleware","StaticConfig.ToMiddleware","sanitizeURI"],"path":"github.com/labstack/echo/v5/middleware"}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6875.json"}}],"schema_version":"1.9.2"}