Claude Desktop Reportedly Adds Browser Access Bridge to Multiple Chromium-Based Browsers

📅 24 April 2026 at 16:20 UTC📰 Cyber Security NewsView original source ↗

A recent technical audit by privacy researcher Alexander Hanff has revealed that Anthropic’s Claude Desktop application for macOS silently installs a Native Messaging bridge into the directories of several Chromium-based browsers. This undocumented behavior occurs without user consent, raising significant privacy and security concerns within the cybersecurity community. When a user installs Claude Desktop (Claude.app), […] The post Claude Desktop Reportedly Adds Browser Access Bridge to Multiple Chromium-Based Browsers appeared first on Cyber Security News.

🤖 AI BriefingAuto-generated threat analysis

🔍Threat Overview

Claude Desktop silently installs a Native Messaging bridge into Chromium-based browsers without user consent, raising significant privacy and security concerns. This undocumented behavior is a serious vulnerability that could be exploited by attackers.

⚙️Technical Details

Affected Systems

macOS

Attack Vectors

Native Messaging bridge installationSilent installation without user consent

💥Impact Assessment

Severity: critical

Who Is at Risk

Users of Claude Desktop on macOS, particularly those who install the application without reviewing its permissions.

🛡️Recommended Actions

1Review and revoke access to Native Messaging bridges for all installed Chromium-based browsers

2Disable automatic updates for Claude Desktop until the issue is resolved

3Monitor system logs for suspicious activity related to Native Messaging bridge installation

📦Affected Products

Claude Desktop application

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