CVE-2026-53766

Katalog CVE

CVSS 6.1 · Medium EPSS 0,12%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada google chrome-devtools-mcp. Skor CVSS 3.1 6.1 (Medium) menurut github.com.

Deskripsi (NVD)

Chrome DevTools for agents (chrome-devtools-mcp) lets your coding agent control and inspect a live Chrome browser. From 0.24.0 until 1.1.0, McpContext.validatePath() enforces workspace roots by checking whether path.resolve(filePath) textually falls under one of the configured root paths. path.resolve() does not canonicalize symbolic links. As a result, a symlink inside a configured workspace root can point to a file outside that root, pass validation, and then be followed by downstream file read/write operations. This bypass applies even when the MCP client correctly declares the roots capability with a non-empty list. It is separate from the documented legacy behavior where missing roots capability allows all paths. The practical impact is a workspace-boundary bypass. In the write direction, filePath-writing tools can overwrite out-of-root files through an in-root symlink. In the read direction, upload_file can read through the symlink and send the file to the currently selected web page. This vulnerability is fixed in 1.1.0.

Rincian

Terbit di NVD

24 Juni 2026

Terakhir diubah

26 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.1 (Medium), sumber github.com
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59: Improper Link Resolution Before File Access ('Link Following')

EPSS (30 hari)

0,12% peluang dieksploitasi; lebih tinggi dari 1,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/ChromeDevTools/chrome-devtools-mcp/security/advisories/GHSA-8qf9-62x2-82pp exploit · advisory pihak ketiga