CVE-2026-102878
mcp-chrome-bridge through 1.0.31 CORS Origin Bypass
- State
- Published
- Severity
- 8.6 High
- Published
- Sep 29, 2026
- Updated
- Sep 29, 2026
- Reserved
- Sep 29, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | 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 | VulnCheck |
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-346 Origin Validation Error
Affected Products
| Product | Versions |
|---|---|
mcp-chrome-bridgehangwin |
|
References
- https://github.com/hangwin/mcp-chrome/issues/384issue-tracking
- https://github.com/hangwin/mcp-chrome/blob/v1.0.0/app/native-server/src/server/index.tstechnical-description
- https://github.com/hangwin/mcp-chromeproduct
- VulnCheck Advisory: mcp-chrome-bridge through 1.0.31 CORS Origin Bypassthird-party-advisory
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