https://nalar.dev/tags/network-security/ Recent content in Network Security on Nalar Hugo en-us Tue, 08 Sep 2026 00:00:00 +0700 https://nalar.dev/restrict-outbound-connections-to-limit-server-side-request-risk/ Tue, 08 Sep 2026 00:00:00 +0700 https://nalar.dev/restrict-outbound-connections-to-limit-server-side-request-risk/ <p>Applications often need to make outbound network requests. A webhook tester may fetch a URL, an image service may download a remote image, or a document processor may retrieve an external resource. The security problem begins when an attacker can influence the destination more than the application intended.</p> <p>If the server can reach internal services, management endpoints, or other networks that the attacker cannot reach directly, a server-side request can cross a trust boundary on the attacker&rsquo;s behalf. Validating the requested URL is important, but URL parsing, redirects, name resolution, and changing network state make application-only defenses easy to overestimate.</p>