https://apicoding.com/tags/fuzzing/ Recent content in Fuzzing on API Coding Hugo en-us Mon, 05 Oct 2026 00:00:00 +0000 https://apicoding.com/fuzzing-mcp-servers-generate-bad-arguments-from-the-tool-schema-and-watch-what-breaks/ Mon, 05 Oct 2026 00:00:00 +0000 https://apicoding.com/fuzzing-mcp-servers-generate-bad-arguments-from-the-tool-schema-and-watch-what-breaks/ <p>You test an MCP server by chatting with it. Ask for the open bugs, get the open bugs, ship it. The model never sends <code>limit: &quot;ten&quot;</code>, an empty <code>path</code> or a 200 KB <code>query</code> while you&rsquo;re watching, so those paths stay dark until a real session hits one. Say it&rsquo;s the <code>limit</code>. The handler throws, the framework wraps the exception in a 40 KB stack trace, and the model reads all of it, adjusts, and retries with the same bug in a new shape.</p>