CVE-2026-102878

Description

mcp-chrome-bridge through 1.0.31 contains an origin validation error in the native-server HTTP API that allows attackers to bypass CORS restrictions. Attackers can craft malicious web pages that make cross-origin requests to the local server and invoke browser automation tools including script execution, page content reading, and screenshot capture.

CVSS Vector

References

• https://github.com/hangwin/mcp-chrome
• https://github.com/hangwin/mcp-chrome/blob/v1.0.0/app/native-server/src/server/index.ts
• https://github.com/hangwin/mcp-chrome/issues/384
• https://www.vulncheck.com/advisories/mcp-chrome-bridge-through-1.0.31-cors-origin-bypass
• https://github.com/hangwin/mcp-chrome/issues/384