What is CVE-2026-53766?

CVE-2026-53766 is a medium-severity vulnerability, classified under Path Traversal. CVSS score: 6.1/10. Published 2026-06-24.

How severe is CVE-2026-53766?

Medium severity. CVSS v3 base score is 6.1 out of 10.

CVE-2026-53766

CVE-2026-53766

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) textu…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

Weakness classification (CWE)

CWE-22 — Path Traversal
CWE-59 — Improper Link Resolution Before File Access

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-53766?: CVE-2026-53766 is a medium-severity vulnerability, classified under Path Traversal. CVSS score: 6.1/10. Published 2026-06-24.
How severe is CVE-2026-53766?: Medium severity. CVSS v3 base score is 6.1 out of 10.