projectdiscovery/nuclei · error · ErrNoCertificate

nuclei user certificate not found

Error message

nuclei user certificate not found

What it means

Error "nuclei user certificate not found" thrown in projectdiscovery/nuclei.

Source

Thrown at pkg/templates/signer/handler.go:33

	"time"

	"github.com/projectdiscovery/gologger"
	fileutil "github.com/projectdiscovery/utils/file"
	"github.com/rs/xid"
	"golang.org/x/term"
)

const (
	CertType           = "PD NUCLEI USER CERTIFICATE"
	PrivateKeyType     = "PD NUCLEI USER PRIVATE KEY"
	CertFilename       = "nuclei-user.crt"
	PrivateKeyFilename = "nuclei-user-private-key.pem"
	CertEnvVarName     = "NUCLEI_USER_CERTIFICATE"
	PrivateKeyEnvName  = "NUCLEI_USER_PRIVATE_KEY"
)

var (
	ErrNoCertificate   = fmt.Errorf("nuclei user certificate not found")
	ErrNoPrivateKey    = fmt.Errorf("nuclei user private key not found")
	SkipGeneratingKeys = false
	noUserPassphrase   = false
)

// KeyHandler handles the key generation and management
// of signer public and private keys
type KeyHandler struct {
	UserCert    []byte
	PrivateKey  []byte
	cert        *x509.Certificate
	ecdsaPubKey *ecdsa.PublicKey
	ecdsaKey    *ecdsa.PrivateKey
}

// ReadCert reads the user certificate from environment variable or given directory
func (k *KeyHandler) ReadCert(envName, dir string) error {
	// read from env

View on GitHub (pinned to 265b3a3dec)

When it happens

Trigger: Thrown at pkg/templates/signer/handler.go:33 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• SSL/TLS and certificate errors — how TLS handshakes and certificate validation fail.

AI-assisted analysis of projectdiscovery/nuclei@265b3a3dec (2026-08-15). Data as JSON: /api/errors/8929283ff79fc96f. Report an issue: GitHub.