hyperledger/fabric · error

channel header not found in the envelope

Error message

channel header not found in the envelope

What it means

SignExistingPackage calls ExtractSignedCCDepSpec to unpack the envelope; even when extraction succeeds, the channel header can be absent (e.g. the envelope payload was not a proper SignedChaincodeDeploymentSpec transaction). This error signals that the envelope contains no ChannelHeader, so the package cannot be attributed to a channel.

Source

Thrown at core/common/ccpackage/ccpackage.go:214

		endorsements[0] = &peer.Endorsement{Signature: signature, Endorser: endorser}
	}

	return createSignedCCDepSpec(cdsbytes, instpolicybytes, endorsements)
}

// SignExistingPackage adds a signature to a signed package.
func SignExistingPackage(env *common.Envelope, owner identity.SignerSerializer) (*common.Envelope, error) {
	if owner == nil {
		return nil, errors.New("owner not provided")
	}

	ch, sdepspec, err := ExtractSignedCCDepSpec(env)
	if err != nil {
		return nil, err
	}

	if ch == nil {
		return nil, errors.New("channel header not found in the envelope")
	}

	if sdepspec == nil || sdepspec.ChaincodeDeploymentSpec == nil || sdepspec.InstantiationPolicy == nil || sdepspec.OwnerEndorsements == nil {
		return nil, errors.New("invalid signed deployment spec")
	}

	// serialize the signing identity
	endorser, err := owner.Serialize()
	if err != nil {
		return nil, fmt.Errorf("Could not serialize the signing identity: %s", err)
	}

	// sign the concatenation of cds, instpolicy and the serialized endorser identity with this endorser's key
	signature, err := owner.Sign(append(sdepspec.ChaincodeDeploymentSpec, append(sdepspec.InstantiationPolicy, endorser...)...))
	if err != nil {
		return nil, fmt.Errorf("Could not sign the ccpackage, err %s", err)
	}

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Ensure the envelope comes from ccpackage.OwnerCreateSignedCCDepSpec or CreateSignedCCDepSpecForInstall, not a hand-assembled envelope
2. Call ExtractSignedCCDepSpec yourself first and inspect the returned header before re-signing
3. Verify the payload is a *peer.SignedChaincodeDeploymentSpec wrapped with a valid common.Header containing ChannelHeader

Example fix

// before
env, err := ccpackage.SignExistingPackage(badEnv, signer)
// after
ch, sdepspec, err := ccpackage.ExtractSignedCCDepSpec(env)
if err != nil || ch == nil { return errors.New("envelope is not a signed CDS package") }
env, err = ccpackage.SignExistingPackage(env, signer)

ch, sdepspec, err := ccpackage.ExtractSignedCCDepSpec(env)
if err != nil || ch == nil {
    return errors.New("envelope is not a signed CDS package")
}
env, err = ccpackage.SignExistingPackage(env, owner)

func isSignedCDSEnvelope(env *common.Envelope) bool {
    ch, _, err := ccpackage.ExtractSignedCCDepSpec(env)
    return err == nil && ch != nil
}

env, err := ccpackage.SignExistingPackage(env, owner)
if err != nil {
    if strings.Contains(err.Error(), "channel header not found") {
        return fmt.Errorf("envelope was not produced by ccpackage; regenerate it: %w", err)
    }
    return err
}

When it happens

Trigger: Passing a common.Envelope that was not produced by OwnerCreateSignedCCDepSpec/CreateSignedCCDepSpec — e.g. a hand-built envelope, an envelope from a different transaction type, or an envelope whose payload/header was stripped.

Common situations: Reading packages from files that were concatenated or truncated; passing a plain (unsigned) ChaincodeDeploymentSpec envelope to SignExistingPackage; mixing envelope formats across Fabric versions.

Related errors

• invalid signed deployment spec
• missing channel header
• error getting txID from header: payload header is nil
• no config found in envelope
• owner not provided

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/3adcd8ff7cf20c7e. Report an issue: GitHub.