The security landscape is evolving rapidly—especially around AI—and traditional bug bounties are struggling to keep pace. Finding vulnerabilities is thrilling; writing long, tedious vulnerability reports with exhaustive reproduction steps and waiting months...

The ability to save (serialize) and load (deserialize) trained models is fundamental to machine learning frameworks. Training a neural network can take hours, days or even weeks on expensive hardware, so developers...

Introduction Some researchers dip their toes into AI/ML security. Phung Van Tai (aka @taiphung217) cannonballed in. Valedictorian of Vietnam’s Academy of Cryptography Techniques and now an AppSec engineer at OneMount Group, Tai...

Introduction Some Ph.D. candidates stay up late fine-tuning models. Tong Liu (aka Lyutoon) stays up late trying to break them. At huntr, we’ve got a thing for spotlighting hackers. This month, the...

Many ML model files— .nemo, .keras, .gguf, even trusty .pth— are just zip/tar archives in disguise. Feed one to a loader that blindly calls extractall()and pow, you’ve opened the door to an...

Before Google even filed CVE-2025-1550, one of our Huntr researchers, Mevlüt Akçam (aka mvlttt on huntr), quietly unearthed a critical flaw that delivers arbitrary code execution the moment you load a malformed .keras model—or, astonishingly,...

Introduction Some people skipped online classes during lockdown to binge Netflix. Arun Krishnan skipped them to hack around on cheats for an online game—and ended up chasing bug bounties. This month, we're...

Sometimes the simplest bugs are the most dangerous — especially when they’ve been hiding in plain sight. This one’s a classic pattern: pickle.load() + unsafe deserialization = RCE. Let’s unpack a clean,...

In this blog, we’re breaking down one of our example Model File Vulnerabilities (MFVs) to help you understand how a trusted tool like TensorFlow—with its Keras Lambda layers—can be exploited. This example...

In this blog, we're breaking down one of our example Model File Vulnerabilities (MFVs) to help you understand how a trusted tool like PyTorch can be exploited. This example is a perfect...

What’s the secret sauce behind consistent bug bounty success? Well, the answer lies in a strategic approach: dissecting a single project, identifying hot spots, leveraging the right tools, and focusing on impactful...

Hey huntrs, Marcello Salvati here, threat researcher at Protect AI (acquired by Palo Alto Networks). I’m here to give you a crash course on Docker. If you’re diving into security research, Docker...