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Claude’s Chrome Extension May Still Be Vulnerable To Exploitation Despite Security Update
24htopnews | May 12, 2026 5:08 PM CST

Anthropic’s Claude AI Chrome extension remains vulnerable to exploitation even after a security update, according to CSO Online and LayerX researchers. Attackers may still misuse the extension through prompt injection techniques and hidden instructions embedded inside webpages

Anthropic’s Claude AI Chrome extension remains vulnerable to exploitation even after the company released a security update to fix earlier issues, according to CSO Online and LayerX researchers.

Researchers said attackers may still be able to misuse the extension through prompt injection techniques and hidden instructions embedded inside webpages.

The Claude browser extension allows users to ask questions about webpage content directly from Chrome.

It reads webpage data and sends relevant information to Claude for analysis and responses.


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