hyperledger/fabric · error

The identity is not valid under this MSP [%s]

Error message

The identity is not valid under this MSP [%s]

What it means

Raised when evaluating a CLIENT or PEER MSPRole principal: msp.Validate(id) failed, so the wrapped message reports that the identity is not valid under the referenced MSP. Validation includes signature/path verification, certificate expiry/revocation, OU/organization-unit checks, and certification-chain trust against the MSP's root certs.

Source

Thrown at msp/mspimpl.go:524

		case m.MSPRole_MEMBER:
			// in the case of member, we simply check
			// whether this identity is valid for the MSP
			mspLogger.Debugf("Checking if identity satisfies MEMBER role for %s", msp.name)
			return msp.Validate(id)
		case m.MSPRole_ADMIN:
			mspLogger.Debugf("Checking if identity satisfies ADMIN role for %s", msp.name)
			// in the case of admin, we check that the
			// id is exactly one of our admins
			if msp.isInAdmins(id.(*identity)) {
				return nil
			}
			return errors.New("This identity is not an admin")
		case m.MSPRole_CLIENT:
			fallthrough
		case m.MSPRole_PEER:
			mspLogger.Debugf("Checking if identity satisfies role [%s] for %s", m.MSPRole_MSPRoleType_name[int32(mspRole.Role)], msp.name)
			if err := msp.Validate(id); err != nil {
				return errors.Wrapf(err, "The identity is not valid under this MSP [%s]", msp.name)
			}

			if err := msp.hasOURole(id, mspRole.Role); err != nil {
				return errors.Wrapf(err, "The identity is not a [%s] under this MSP [%s]", m.MSPRole_MSPRoleType_name[int32(mspRole.Role)], msp.name)
			}
			return nil
		default:
			return errors.Errorf("invalid MSP role type %d", int32(mspRole.Role))
		}
	case m.MSPPrincipal_IDENTITY:
		// in this case we have to deserialize the principal's identity
		// and compare it byte-by-byte with our cert
		principalId, err := msp.DeserializeIdentity(principal.Principal)
		if err != nil {
			return errors.WithMessage(err, "invalid identity principal, not a certificate")
		}

		if bytes.Equal(id.(*identity).cert.Raw, principalId.(*identity).cert.Raw) {

View on GitHub (pinned to 2736b63f8f)

Solutions

  1. Read the wrapped inner error (validateIdentity internals) to see the exact cause: expired, untrusted chain, revoked, or bad OU.
  2. Re-enroll or renew the identity's certificate via fabric-ca and update the wallet.
  3. Ensure the full certificate chain (intermediates) is trusted in the MSP config of the channel (rootcerts/intermediatecerts).
  4. Check the host clock (NTP) and FabricNodeOUs/OUIdentifiers config if OU-based classification is in use.

Example fix

// before: expired cert in wallet
x509id, _ := identity.NewX509Identity(mspID, signerCert, signerKey) // signerCert expired

// after: re-enroll and refresh credentials
fabric-ca-client reenroll -u https://ca.example.com:7054
// load new cert/key into the wallet before evaluating the policy
Defensive patterns

Strategy: try-catch

Validate before calling

// check cert validity locally before evaluation
func certUsable(pemBytes []byte) error {
	cert, err := x509.ParseCertificate(pemToDER(pemBytes))
	if err != nil {
		return err
	}
	now := time.Now()
	if now.Before(cert.NotBefore) || now.After(cert.NotAfter) {
		return fmt.Errorf("certificate not valid: %v..%v", cert.NotBefore, cert.NotAfter)
	}
	return nil
}

Type guard

func isTrustedIdentity(id msp.Identity, m msp.MSP) bool {
	return m.Validate(id) == nil
}

Try / catch

if err := policy.Evaluate(id); err != nil {
	if strings.Contains(err.Error(), "not valid under this MSP") {
		// renew cert via fabric-ca-client reenroll, reload wallet, then retry once
		renewAndRetry(ctx)
	}
	return err
}

Prevention

When it happens

Trigger: Checking a policy with MSPRole_CLIENT/MSPRole_PEER where Validate() rejects the identity — expired or not-yet-valid enrollment certificate, certificate signed by an unknown root/intermediate, revoked cert, missing intermediate certs in the chain, or NodeOUs configuration rejecting the cert's OU/type.

Common situations: Enrollment certificates expired (fabric-ca 1-year defaults); peer restarted with updated root certs while client holds an old cert; intermediates not included in the presented chain; FabricNodeOUs enabled but identity lacks the required client/peer OU; clock skew on the client host.

Related errors


AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/00c356ea94683539. Report an issue: GitHub.