CVE-2026-102878

Published: Sep 29, 2026Modified: Sep 30, 2026Deferred

8.6

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

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.

Related CWEs

CWE-346

Origin Validation Error

The product does not properly verify that the source of data or communication is valid.

References (5)

https://github.com/hangwin/mcp-chrome

Source: disclosure@vulncheck.com

https://github.com/hangwin/mcp-chrome/blob/v1.0.0/app/native-server/src/server/index.ts

Source: disclosure@vulncheck.com

https://github.com/hangwin/mcp-chrome/issues/384

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/mcp-chrome-bridge-through-1.0.31-cors-origin-bypass

Source: disclosure@vulncheck.com

https://github.com/hangwin/mcp-chrome/issues/384

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.