Persistent XSS/RCE using WebSockets in Storybook’s dev server
A WebSocket hijacking vulnerability in Storybook's development server (CVE-2026-27148) can be chained to achieve persistent XSS and RCE, creating a credible path to supply-chain compromise for any team running Storybook locally.
Summary written by editorial AI · Source link below
CVE-2026-27148 exposes a WebSocket hijacking flaw in Storybook that can escalate into supply chain compromise. Learn the attack path, impact, and how to remediate. Category: Vulnerabilities & Threats
Editorial Analysis
Development tools are increasingly targeted as pivot points into CI/CD pipelines; a compromised Storybook instance could inject malicious code into production builds before any security gate catches it.
Audit whether Storybook dev servers are exposed beyond localhost, upgrade to patched versions, and restrict WebSocket origins in development environments.
A widely-used frontend development tool has a vulnerability that could let attackers inject code into your software supply chain.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
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