One Extension Could Hijack AI Assistants Across Chrome, Comet, Edge, Opera Neon and Claude
The Hacker News published a report on September 16, 2026, stating that one extension could hijack AI assistants across Chrome, Comet, Edge, Opera Neon, and Claude. The headline frames the issue as a single extension affecting multiple browser-based AI assistant surfaces, listing the browsers and the Claude assistant by name. The provided source text contains no further technical detail: it does not name the extension, its publisher, or the mechanism by which the hijack is said to occur. It also does not include a CVE identifier, affected version numbers, a disclosure timeline, or any statement from the browser vendors or from Anthropic. No remediation guidance, patch status, or confirmation of exploitation in the wild appears in the excerpt. Because the source is limited to the headline and surrounding page markup, the digest cannot describe how the extension operates, what data or actions are exposed, or which users are affected. The only concrete, source-grounded facts are the claim that one extension could hijack AI assistants and the list of environments named: Chrome, Comet, Edge, Opera Neon, and Claude.
The report indicates that a single extension could compromise AI assistants in several browsers and Claude, a surface developers may rely on.