CVE-2026-14420 Memory corruption in Chrome

Critical 9.6 Published Updated

A remote attacker can escape the browser sandbox and execute arbitrary code via a crafted HTML page exploiting an out-of-bounds memory error in Dawn.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-14420?

CVE-2026-14420 is a critical memory corruption vulnerability in Google Chrome, published on 1 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Out of bounds read and write in Dawn in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

Weakness: CWE-787, CWE-125

Which versions are affected by CVE-2026-14420?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-14420?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-14420 being exploited?

There is no known exploitation of CVE-2026-14420 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-14420, ECHO-ee1f-da11-4897, GHSA-g9cr-jqjw-cv33, MINI-v7p9-799m-hj9c.

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