projectdiscovery/nuclei · error

invalid file extension: supported extensions are .yml,.yaml

Error message

invalid file extension: supported extensions are .yml,.yaml and .json got %s

What it means

Error "invalid file extension: supported extensions are .yml,.yaml and .json got %s" thrown in projectdiscovery/nuclei.

Source

Thrown at pkg/authprovider/authx/file.go:210

	slice := strings.Split(tmp, ";")
	if len(slice) == 0 {
		return fmt.Errorf("invalid raw cookie no ; found")
	}
	// first element is the cookie name and value
	cookie := strings.Split(slice[0], "=")
	if len(cookie) == 2 {
		c.Key = cookie[0]
		c.Value = cookie[1]
		return nil
	}
	return fmt.Errorf("invalid raw cookie: %s", c.Raw)
}

// GetAuthDataFromFile reads the auth data from file
func GetAuthDataFromFile(file string) (*Authx, error) {
	ext := filepath.Ext(file)
	if !generic.EqualsAny(ext, ".yml", ".yaml", ".json") {
		return nil, fmt.Errorf("invalid file extension: supported extensions are .yml,.yaml and .json got %s", ext)
	}
	bin, err := os.ReadFile(file)
	if err != nil {
		return nil, err
	}
	if ext == ".yml" || ext == ".yaml" {
		return GetAuthDataFromYAML(bin)
	}
	return GetAuthDataFromJSON(bin)
}

// GetTemplatePathsFromSecretFile reads the template IDs from the secret file
func GetTemplatePathsFromSecretFile(file string) ([]string, error) {
	auth, err := GetAuthDataFromFile(file)
	if err != nil {
		return nil, err
	}
	var paths []string

View on GitHub (pinned to 265b3a3dec)

When it happens

Trigger: Thrown at pkg/authprovider/authx/file.go:210 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of projectdiscovery/nuclei@265b3a3dec (2026-08-15). Data as JSON: /api/errors/1532a8e2fc192350. Report an issue: GitHub.