AI & LLM Vulnerabilities

A ReDoS vulnerability (regular expression denial of service, where specially crafted input causes a program's pattern-matching code to consume excessive CPU) was found in the Hugging Face Transformers library's number normalization feature. An attacker could send text with long digit sequences to crash or slow down text-to-speech and number processing tasks. The vulnerability affects versions up to 4.52.4.

A ReDoS vulnerability (regular expression denial of service, where specially crafted input causes a program to use excessive CPU by making regex matching extremely slow) was found in Hugging Face Transformers library version 4.52.4, specifically in the MarianTokenizer's `remove_language_code()` method. The bug is triggered by malformed language code patterns that force inefficient regex processing, potentially crashing or freezing the system.

CVE-2025-55319 is a command injection vulnerability (a type of attack where an attacker inserts malicious commands into a program's input) in Agentic AI (an AI system that can perform tasks independently) and Visual Studio Code that allows an unauthorized attacker to execute code over a network. The vulnerability stems from improper handling of special characters in commands, which lets attackers run arbitrary code on affected systems.

MONAI, an AI toolkit for medical imaging, has a deserialization vulnerability (unsafe unpickling, where untrusted data is converted back into executable code) in versions up to 1.5.0 when loading pre-trained model checkpoints from external sources. While one part of the code uses secure loading (`weights_only=True`), other parts load checkpoints insecurely, allowing attackers to execute malicious code if a checkpoint contains intentionally crafted harmful data.

Roo Code is an AI tool that helps developers write code directly in their editors, but versions 3.25.23 and older have a security flaw where npm install (a command that downloads and sets up code packages) is automatically approved without asking the user first. If a malicious repository's package.json file contains a postinstall script (code that runs automatically during package installation), it could execute harmful commands on the user's computer without their knowledge or consent.

Roo Code is an AI tool that automatically writes code in your editor, but versions 3.25.23 and earlier have a security flaw where workspace configuration files (.code-workspace files that store project settings) aren't properly protected. An attacker using prompt injection (tricking the AI by hiding malicious instructions in its input) could trick the agent into writing harmful settings that execute as code when you reopen your project, potentially giving the attacker control of your computer.

Roo Code is an AI tool that automatically writes code in your editor, but versions before 3.26.0 have a security flaw in how it parses commands (reads and interprets instructions). If someone configures the tool to automatically run commands without checking them first, an attacker could trick it into running extra harmful commands by manipulating the input the AI receives.

The EverNoteLoader component in langchain-ai/langchain version 0.3.63 has a security flaw that allows XXE (XML External Entity) attacks, where an attacker tricks the XML parser into reading external files by embedding special references in XML input. This could expose sensitive system files like password lists to an attacker.

CVE-2025-9959 is a vulnerability in smolagents (a Python agent library) where incomplete validation of dunder attributes (special Python variables with double underscores, like __import__) allows an attacker to escape the sandbox (a restricted execution environment) if they use prompt injection (tricking the AI into executing malicious commands). The attack requires the attacker to manipulate the agent's input to make it create and run harmful code.

Langflow, a tool for building AI-powered agents and workflows, has a privilege escalation vulnerability (CWE-269, improper privilege management) where an authenticated user with RCE (remote code execution, the ability to run commands on a system they don't own) can use an internal CLI command to create a new administrative account, gaining full superuser access even if they originally registered as a regular user. A patched version has not been publicly released at the time this advisory was published.

Roo Code is an AI tool that automatically writes code inside text editors, but versions before 3.25.5 have a bug in how they parse commands (the instructions telling a computer what to do). An attacker could trick the AI into running extra harmful commands by hiding them in prompts if the user had enabled auto-approved command execution, a risky setting that is off by default.