{"id":"CVE-2026-102878","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-102878","summary":"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…","details":"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.","published":"2026-09-29T20:17:18.620","modified":"2026-09-29T20:17:18.620","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/hangwin/mcp-chrome"},{"type":"WEB","url":"https://github.com/hangwin/mcp-chrome/blob/v1.0.0/app/native-server/src/server/index.ts"},{"type":"WEB","url":"https://github.com/hangwin/mcp-chrome/issues/384"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/mcp-chrome-bridge-through-1.0.31-cors-origin-bypass"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-29T20:17:18.620"}}