What is CVE-2026-53765?

CVE-2026-53765 is a medium-severity vulnerability in Chromedevtools Chrome-devtools-mcp, classified under Improper Link Resolution Before File Access. CVSS score: 6.1/10. Published 2026-06-24.

How severe is CVE-2026-53765?

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

Vulnerability in Chromedevtools Chrome-devtools-mcp

CVE-2026-53765

Chrome DevTools for agents (chrome-devtools-mcp) lets your coding agent control and inspect a live Chrome browser. From 0.20.0 until 1.1.0, The chrome-devtools-mcp daemon writes its PID file with fs.writeFileSync() to a deterministic runti…

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.

Affected products

Chromedevtools Chrome-devtools-mcp — versions >= 0.20.0, < 1.1.0

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-53765?: CVE-2026-53765 is a medium-severity vulnerability in Chromedevtools Chrome-devtools-mcp, classified under Improper Link Resolution Before File Access. CVSS score: 6.1/10. Published 2026-06-24.
How severe is CVE-2026-53765?: Medium severity. CVSS v3 base score is 6.1 out of 10.