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VERIFIEDConfidence: HIGH
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Fact-check summary

Cited CVE id is in the NVD or CISA KEV record.

1 caveat
  • ▲No independent corroboration found for the vulnerability details or affected versions.
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Home/Tech/CVE-2026-102878 scores 8.1 in mcp-chrome-bridge through 1.0.31
VERIFIEDBy Xavier Rivera· ·1 min read

CVE-2026-102878 scores 8.1 in mcp-chrome-bridge through 1.0.31

CVE-2026-102878 carries a CVSS score of 8.1 and impacts mcp-chrome-bridge through version 1.0.31 due to a CORS origin validation error. The flaw lets remote attackers invoke local browser automation tools including script execution and screenshot capture from crafted web pages.

Source:NVD
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CVE-2026-102878 scores 8.1 in mcp-chrome-bridge through 1.0.31
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TL;DRAI · 60 sec read

CVE-2026-102878 scores 8.1 in mcp-chrome-bridge through 1.0.31. An origin validation flaw in the native-server HTTP API allows malicious web pages to bypass CORS and access browser automation to execute scripts, read page content, and capture screenshots.

A high-severity vulnerability tracked as CVE-2026-102878 has been published in the National Vulnerability Database for the mcp-chrome-bridge project. The entry assigns a CVSS score of 8.1 (HIGH).

The flaw resides in the native-server HTTP API. The issue stems from an origin validation error that permits attackers to bypass CORS restrictions on the local server.
The issue stems from an origin validation error that permits attackers to bypass CORS restrictions on the local server.

Malicious web pages can therefore issue cross-origin requests without proper checks.

Attackers gain access to browser automation functions. Successful exploitation allows script execution, reading of page content, and capture of screenshots through the affected API endpoints.
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The CVSS 3.1 vector is listed as AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N, confirming network attack vector, low complexity, no privileges required, and user interaction needed.
Successful exploitation allows script execution, reading of page content, and capture of screenshots through the affected API endpoints.

Versions through 1.0.31 are affected. The NVD entry references the project's GitHub repository, a specific server index file at v1.0.0, issue 384, and an advisory from VulnCheck.
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No mitigation steps or patched version details appear in the current record.
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