CVE-2026-102878— mcp-chrome-bridge through 1.0.31 CORS Origin Bypass
Quick assessment
Affected
hangwin mcp-chrome-bridge
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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
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I. Basic Information for CVE-2026-102878
Vulnerability Information
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Vulnerability Title
mcp-chrome-bridge through 1.0.31 CORS Origin Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
源验证错误
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| hangwin | mcp-chrome-bridge | 0 ~ 1.0.31 | - |
|
II. Public POCs for CVE-2026-102878
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-102878 (4)
-
https://github.com/hangwin/mcp-chrome/issues/384 issue-tracking
-
https://github.com/hangwin/mcp-chrome/blob/v1.0.0/app/native-server/src/server/index.ts technical-description
IV. Related Vulnerabilities
Same weakness: CWE-346
-
CVE-2026-102675
Electron: File and HTTP protocol handlers allow cross-origin -
CVE-2026-102673
Electron drops inherited HTML sandbox restrictions for popup -
CVE-2026-101278
Trusted Domain Project OpenDMARC PSL Wildcard opendmarc_tld. -
CVE-2026-18825
Origin validation error in the connect-xcors npm package -
CVE-2026-100646
SiYuan before v3.8.4 Authentication Bypass via Missing Origi
V. Comments for CVE-2026-102878
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