All vulnerabilities
CVE-2026-102878

mcp-chrome-bridge through 1.0.31 CORS Origin Bypass

hangwin mcp-chrome-bridgeApplications & CMS
Open in ThreatlineRecord JSON
CVSS
8.6High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 29 Sep 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.24%Chance of exploitation activity in the next 30 days, higher than 13% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published29 Sep 2026Updated 29 Sep 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 1

  • mcp-chrome-bridgeaffected: all versions through 1.0.31CVE List

References 4