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CybersecurityAI-assisted

OpenClaw 0-Click Vulnerability Allows Malicious Websites to Hijack Developer AI Agents

## Cybersecurity: OpenClaw Vulnerability Overview

BBy Ben EmersonMar 02, 20261 min read

Cybersecurity: OpenClaw Vulnerability Overview

A critical zero-interaction vulnerability in the OpenClaw AI agent framework has been identified by Oasis Security researchers. This vulnerability enables malicious websites to gain complete control over a developer's AI agent without requiring plugins, extensions, or any user interaction.

OpenClaw is a self-hosted AI agent that connects to various developer tools and local systems, acting autonomously on the user's behalf. The tool has rapidly gained popularity, amassing over 100,000 GitHub stars in just five days, and is widely used by developers globally.

The vulnerability exploits OpenClaw's local WebSocket gateway, which serves as the central orchestration layer for connected nodes, such as macOS apps and iOS devices. The attack is initiated when a developer visits a malicious website.

A victim visits an attacker-controlled website. JavaScript on the site opens a WebSocket connection to the OpenClaw gateway on localhost. The script attempts to brute-force the gateway password, exploiting the lack of rate limiting for localhost connections. Upon successful authentication, the script registers as a trusted device without user prompts. The attacker gains full administrative control over the AI agent.

A critical zero-interaction vulnerability in the OpenClaw AI agent framework has been identified by Oasis Security researchers.
Ben Emerson · Thehackingpost

The vulnerability arises from flawed assumptions about localhost connection trustworthiness, browser traffic limitations to local services, and rate limiting for loopback addresses.

Once authenticated, a remote attacker can instruct the AI agent to perform various unauthorized actions, such as accessing private messages or executing shell commands, effectively compromising the developer's workstation.

Update to OpenClaw version 2026.2.25 or later. Inventory all OpenClaw instances, including those outside IT visibility. Audit and revoke unnecessary credentials and permissions. Establish governance policies for AI agent identities.

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The OpenClaw team has released a high-severity patch within 24 hours. Organizations are advised to treat this remediation with urgency due to the tool's rapid adoption.

Based on reporting by Cyber Security News.

AI transparency. This article was produced with the assistance of artificial intelligence and published under human editorial oversight. AI systems can make mistakes. Read how we use AI (EU AI Act, Art. 50).
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