{"record":{"id":"d64c1af77cd616c6","repo":"XTLS/Xray-core","slug":"failed-to-read-request-user-id","errorCode":null,"errorMessage":"failed to read request user id","messagePattern":"failed to read request user id","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"proxy/vless/encoding/encoding.go","lineNumber":89,"sourceCode":"\t\trequest.Version = first.Byte(0)\n\t} else {\n\t\tif _, err := buffer.ReadFullFrom(reader, 1); err != nil {\n\t\t\treturn nil, nil, nil, false, errors.New(\"failed to read request version\").Base(err)\n\t\t}\n\t\trequest.Version = buffer.Byte(0)\n\t}\n\n\tswitch request.Version {\n\tcase 0:\n\n\t\tvar id [16]byte\n\n\t\tif isfb {\n\t\t\tcopy(id[:], first.BytesRange(1, 17))\n\t\t} else {\n\t\t\tbuffer.Clear()\n\t\t\tif _, err := buffer.ReadFullFrom(reader, 16); err != nil {\n\t\t\t\treturn nil, nil, nil, false, errors.New(\"failed to read request user id\").Base(err)\n\t\t\t}\n\t\t\tcopy(id[:], buffer.Bytes())\n\t\t}\n\n\t\tif request.User = validator.Get(id); request.User == nil {\n\t\t\tu := uuid.UUID(id)\n\t\t\treturn nil, nil, nil, isfb, errors.New(\"invalid request user id: \" + u.String())\n\t\t}\n\n\t\tif isfb {\n\t\t\tfirst.Advance(17)\n\t\t}\n\n\t\trequestAddons, err := DecodeHeaderAddons(&buffer, reader)\n\t\tif err != nil {\n\t\t\treturn nil, nil, nil, false, errors.New(\"failed to decode request header addons\").Base(err)\n\t\t}\n","sourceCodeStart":71,"sourceCodeEnd":107,"githubUrl":"https://github.com/XTLS/Xray-core/blob/7d214f8b094f75322fa3990f8aadad1c912f24f5/proxy/vless/encoding/encoding.go#L71-L107","documentation":"Error \"failed to read request user id\" thrown in XTLS/Xray-core.","triggerScenarios":"Thrown at proxy/vless/encoding/encoding.go:89 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"7d214f8b094f75322fa3990f8aadad1c912f24f5","analyzedAt":"2026-08-15T14:26:24.325Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}