AI Sec Watch

CVE-2025-46149 is a bug in PyTorch (a machine learning library) versions before 2.7.0 where the nn.Fold function crashes with an assertion error when inductor (PyTorch's code optimization tool) is used. This is classified as a reachable assertion vulnerability, meaning the code reaches a safety check that fails unexpectedly.

PyTorch versions up to 2.6.0 have a bug where the nn.PairwiseDistance function (a tool that calculates distances between pairs of data points) produces wrong answers when using the p=2 parameter in eager mode (the default execution method). This is a correctness issue, meaning the calculation gives incorrect numerical results rather than causing a security breach.

Claude Code is a tool that uses AI to help write code, and it had a security flaw in versions before 1.0.39 where Yarn plugins (add-ons for a package manager) would run automatically when checking the version, bypassing Claude Code's trust dialog (a safety check asking users to confirm they trust a directory before working in it). This only affected users with Yarn versions 2.0 and newer, not those using the older Yarn Classic.

Multiple AI coding agents (like GitHub Copilot and Claude Code) can write to each other's configuration files, allowing one compromised agent to modify another agent's settings through an indirect prompt injection (tricking an AI by hiding malicious instructions in its input). This creates a cross-agent privilege escalation, where one agent can 'free' another by giving it additional capabilities to break out of its sandbox (an isolated environment limiting what software can do) and execute arbitrary code.

California's legislature passed SB-53, the 'Transparency in Frontier Artificial Intelligence Act,' which would make California the first US state to regulate catastrophic risk (foreseeable harms like weapons creation, cyberattacks, or loss of control that could kill over 50 people or cause over $1 billion in damage). The bill requires developers of frontier AI models (large, cutting-edge AI systems) to publish transparency reports on their systems' capabilities and risk assessments, update safety frameworks yearly, and report critical safety incidents to state emergency services.

This research proposes 2PCAutoDL, a system for automatically designing deep neural networks (DNNs, which are AI models with many layers) while keeping data and model designs private by splitting computations between two separate cloud servers. The system balances security and speed by using specialized protocols (step-by-step procedures) for different types of network layers, achieving significant speedups compared to existing approaches while maintaining similar model accuracy.

RDSAD is an AI-based security system designed to detect cyberattacks on Cyber-Physical Systems (CPSs, which are machines that combine physical equipment with software to automate industrial processes). The system works without manual labeling and uses two techniques: one to understand how the system normally behaves, and another to adapt when patterns change, helping it catch attacks while avoiding false alarms.

Modern software development relies on implicit trust assumptions when installing packages through tools like cargo add or pip install, but attackers are systematically exploiting these assumptions through supply chain attacks (attacks that compromise software before it reaches developers). In 2024 alone, malicious packages were removed from package registries (centralized repositories for code), maintainers' accounts were compromised to publish malware, and critical infrastructure nearly had backdoors (hidden access points) inserted. Traditional defenses like dependency scanning (automated checks for known security flaws) only catch known vulnerabilities, missing attacks like typosquatting (creating packages with names similar to legitimate ones), compromised maintainers, and poisoned build pipelines (the automated systems that compile and package code).

The huggingface/transformers library before version 4.53.0 has a vulnerability where malicious regular expressions (patterns used to match text) in certain settings can cause ReDoS (regular expression denial of service, a type of attack that makes a system use 100% CPU and become unresponsive). An attacker who can control these regex patterns in the AdamWeightDecay optimizer (a tool that helps train machine learning models) can make the system hang and stop working.