Signatures Catalog

How to browse, filter, preview, and launch Nuclei templates from the Signatures catalog on the Vulnerabilities page.

Overview

The Signatures catalog is a searchable, filterable table of Nuclei templates mounted directly on the Vulnerabilities page. It replaces the previous three-pane IDE view, letting security teams discover, preview, and enqueue templates without leaving their vulnerability workflow.

All customers can browse the Global template catalog in read-only mode. Actions that modify templates — Create, Import, Generate from CVE, Edit YAML, and Refine with AI — remain available to Praetorian operators only and appear disabled for other users.

Accessing the Signatures Catalog

Navigate to Vulnerabilities in the Guard sidebar.
Select the Signatures tab.

Vulnerabilities Signatures catalog listing Global Nuclei templates (dark mode)

The catalog loads the complete Global template tree automatically. No additional permissions or feature flags are required.

Browsing and Filtering Templates

The catalog renders as a table consistent with the Capabilities catalog layout. Each row represents a single Nuclei template and shows its name, protocol, scope, and any applicable flags.

Two filter controls narrow the visible template set:

Filter	Description
Protocol	Limits results to templates that operate over a specific protocol (e.g., HTTP, TCP, DNS).
Scope	Limits results to templates assigned to a particular scope category.

Both filters can be combined. Clear any filter to return to the full template list.

Previewing a Template

Click any row in the catalog to open the YAML modal — a full-width overlay that displays the complete, untruncated YAML source for that template. The modal replaces the previous horizontal-scrolling editor pane.

Close the modal to return to the catalog without losing your current filter state.

Enqueueing a Template

From within the YAML modal, use the enqueue control to schedule the template for execution against your targets. Templates marked Privileged (see below) cannot be enqueued by non-Praetorian users.

Mutation Controls

The following actions are visible in the catalog interface but are restricted to Praetorian operators:

Action	Description
Create	Author a new template from scratch.
Import	Import an existing YAML template into the catalog.
Generate from CVE	Scaffold a template based on a CVE identifier.
Edit YAML	Modify the YAML source of an existing template.
Refine with AI	Use AI-assisted suggestions to improve a template.

These controls appear disabled when accessed outside a Praetorian-managed account.

Privileged Templates

Templates developed for CVE researcher workflows that require elevated access are marked with a Privileged badge in the catalog. These templates are visible to all users for reference but are restricted from enqueueing outside of Praetorian-managed accounts.

Template Coverage

The catalog fetches the complete Global Nuclei template tree, including directories that GitHub's recursive listing API would otherwise truncate. Internal workflow paths and customer-specific template paths are excluded from the catalog view. The result is that every customer-relevant Global template is discoverable from the catalog.