• With bad code being easier than ever to write thanks to AI, application security is ever more important. • One of the earliest attack vectors for the internet are file uploads, and they are still a threat. • Open source projects like pompelmi provide easy and flexible ways to defend against this attack using modern tech. • I spoke with the creator of the project, Tommaso Bertocchi, about how it works. • —————————- Q: When people think of application security today, they usually think in terms of network connections, user auth, and API security. • File uploads seems like a niche and/or early internet problem.

Article Summaries:

  • Defense against uploads: Q&A with OSS file scanner, pompelmi

Open‑source file‑upload scanner pompelmi was created to address a persistent but often overlooked security risk: malicious or malformed files uploaded to web applications. Tommaso Bertocchi, the project’s author, notes that traditional malware scanners require deep expertise and heavy configuration, discouraging solo developers. Pompelmi offers a plug‑and‑play Node.js library that scans uploads in‑memory using streams and magic‑byte detection, avoiding disk I/O and network latency. By integrating directly into the same runtime as modern front‑end stacks, it lowers friction and encourages developers to secure file handling, reducing exposure to execution, denial‑of‑service, and bypass attacks.

  • Open‑source project pompelmi addresses a long‑overlooked security risk: file uploads. Creator Tommaso Bertocchi explains that, despite the rise of AI‑generated code, upload handling remains a critical attack vector that is often ignored because it is perceived as complex. Existing malware scanners require deep expertise and heavy configuration, discouraging solo developers. pompelmi offers a plug‑and‑play Node.js library that scans uploads in‑memory using streams and magic‑byte detection, avoiding disk I/O and network latency. By integrating directly into the JavaScript ecosystem, it encourages broader adoption of secure upload practices and helps prevent exploits such as malicious archives or MIME‑spoofed files.

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