CVE-2026-102878
highmcp-chrome-bridge through 1.0.31 contains an origin validation error in the native-server HTTP API that allows attackers to bypass CORS restrictions.
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.
CVSS
8.1
8.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-09-29 20:17
Modified: 2026-09-30 17:32
NVD status: Deferred
Last synced 2 days ago
Verified against the source API 2026-10-27 06:56 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/hangwin/mcp-chrome disclosure@vulncheck.com
- https://github.com/hangwin/mcp-chrome/blob/v1.0.0/app/native-server/src/server/index.ts disclosure@vulncheck.com
- https://github.com/hangwin/mcp-chrome/issues/384 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/mcp-chrome-bridge-through-1.0.31-cors-origin-bypass disclosure@vulncheck.com
- https://github.com/hangwin/mcp-chrome/issues/384 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:56 UTC · record ↗