hyperledger/fabric · error

envelope header cannot be nil

Error message

envelope header cannot be nil

What it means

Returned by NewBundleFromEnvelope when the payload extracted from a config envelope has a nil Header. A valid configtx envelope must carry a header (containing the channel header used to bind the config to a channel); its absence means the envelope is malformed or truncated.

Source

Thrown at common/channelconfig/bundle.go:181

	return nil
}

// NewBundleFromEnvelope wraps the NewBundle function, extracting the needed
// information from a full configtx
func NewBundleFromEnvelope(env *cb.Envelope, bccsp bccsp.BCCSP) (*Bundle, error) {
	payload, err := protoutil.UnmarshalPayload(env.Payload)
	if err != nil {
		return nil, errors.Wrap(err, "failed to unmarshal payload from envelope")
	}

	configEnvelope, err := configtx.UnmarshalConfigEnvelope(payload.Data)
	if err != nil {
		return nil, errors.Wrap(err, "failed to unmarshal config envelope from payload")
	}

	if payload.Header == nil {
		return nil, errors.Errorf("envelope header cannot be nil")
	}

	chdr, err := protoutil.UnmarshalChannelHeader(payload.Header.ChannelHeader)
	if err != nil {
		return nil, errors.Wrap(err, "failed to unmarshal channel header")
	}

	return NewBundle(chdr.ChannelId, configEnvelope.Config, bccsp)
}

// NewBundle creates a new immutable bundle of configuration
func NewBundle(channelID string, config *cb.Config, bccsp bccsp.BCCSP) (*Bundle, error) {
	if err := preValidate(config); err != nil {
		return nil, err
	}

	channelConfig, err := NewChannelConfig(config.ChannelGroup, bccsp)
	if err != nil {

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Reject/rebuild the envelope; valid Fabric payloads always carry a header
2. If produced by custom tooling, fix the envelope construction to include a channel header

When it happens

Trigger: Thrown at common/channelconfig/bundle.go:181 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/e908894c2b02d343. Report an issue: GitHub.