ruby/rubygems · error · Gem::Security::Exception

no digests provided (probable bug)

Error message

no digests provided (probable bug)

What it means

Error "no digests provided (probable bug)" thrown in ruby/rubygems.

Source

Thrown at lib/rubygems/security/policy.rb:230

        # lack of signatures is irrelevant if there is nothing to check
        # against
      else
        alert_warning "#{full_name} is not signed"
        return
      end
    end

    opt       = @opt
    digester  = Gem::Security.create_digest
    trust_dir = opt[:trust_dir]
    time      = Time.now

    _, signer_digests = digests.find do |_algorithm, file_digests|
      file_digests.values.first.name == Gem::Security::DIGEST_NAME
    end

    if @verify_data
      raise Gem::Security::Exception, "no digests provided (probable bug)" if
        signer_digests.nil? || signer_digests.empty?
    else
      signer_digests = {}
    end

    signer = chain.last

    check_key signer, key if key

    check_cert signer, nil, time if @verify_signer

    check_chain chain, time if @verify_chain

    check_root chain, time if @verify_root

    if @only_trusted
      check_trust chain, digester, trust_dir
    elsif signatures.empty? && digests.empty?

View on GitHub (pinned to 86cbb817a3)

Solutions

1. This indicates a RubyGems bug; report it with the gem file at https://github.com/rubygems/rubygems/issues

When it happens

Trigger: Thrown at lib/rubygems/security/policy.rb:230 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ruby/rubygems@86cbb817a3 (2026-08-23). Data as JSON: /api/errors/e427c1a946f41a19. Report an issue: GitHub.