{"record":{"id":"8216f97ccf841dd7","repo":"hyperledger/fabric","slug":"error-unmarshalling-signatureheader","errorCode":null,"errorMessage":"error unmarshalling SignatureHeader","messagePattern":"error unmarshalling SignatureHeader","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"protoutil/unmarshalers.go","lineNumber":75,"sourceCode":"// UnmarshalChannelHeader unmarshals bytes to a ChannelHeader\nfunc UnmarshalChannelHeader(bytes []byte) (*common.ChannelHeader, error) {\n\tchdr := &common.ChannelHeader{}\n\terr := proto.Unmarshal(bytes, chdr)\n\treturn chdr, errors.Wrap(err, \"error unmarshalling ChannelHeader\")\n}\n\n// UnmarshalChaincodeID unmarshals bytes to a ChaincodeID\nfunc UnmarshalChaincodeID(bytes []byte) (*peer.ChaincodeID, error) {\n\tccid := &peer.ChaincodeID{}\n\terr := proto.Unmarshal(bytes, ccid)\n\treturn ccid, errors.Wrap(err, \"error unmarshalling ChaincodeID\")\n}\n\n// UnmarshalSignatureHeader unmarshals bytes to a SignatureHeader\nfunc UnmarshalSignatureHeader(bytes []byte) (*common.SignatureHeader, error) {\n\tsh := &common.SignatureHeader{}\n\terr := proto.Unmarshal(bytes, sh)\n\treturn sh, errors.Wrap(err, \"error unmarshalling SignatureHeader\")\n}\n\n// UnmarshalIdentifierHeader unmarshals bytes to an IdentifierHeader\nfunc UnmarshalIdentifierHeader(bytes []byte) (*common.IdentifierHeader, error) {\n\tih := &common.IdentifierHeader{}\n\terr := proto.Unmarshal(bytes, ih)\n\treturn ih, errors.Wrap(err, \"error unmarshalling IdentifierHeader\")\n}\n\nfunc UnmarshalSerializedIdentity(bytes []byte) (*msp.SerializedIdentity, error) {\n\tsid := &msp.SerializedIdentity{}\n\terr := proto.Unmarshal(bytes, sid)\n\treturn sid, errors.Wrap(err, \"error unmarshalling SerializedIdentity\")\n}\n\n// UnmarshalHeader unmarshals bytes to a Header\nfunc UnmarshalHeader(bytes []byte) (*common.Header, error) {\n\thdr := &common.Header{}","sourceCodeStart":57,"sourceCodeEnd":93,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/protoutil/unmarshalers.go#L57-L93","documentation":"Returned by protoutil.UnmarshalSignatureHeader when proto.Unmarshal fails on the supplied bytes — not a valid common.SignatureHeader encoding. Generic wrap used across proposal and transaction validation paths.","triggerScenarios":"Thrown at protoutil/unmarshalers.go:75 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Reject the transaction/proposal with the malformed signature header","Verify the client serialized the SignatureHeader correctly"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"2736b63f8fd5932511d56fe68b7039d15977f7f6","analyzedAt":"2026-09-04T08:52:36.465Z","contentChangedAt":"2026-09-04T08:52:36.465Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}