CVE-2026-78935 Memory corruption in Chrome

Critical 9.6 Published Updated

A remote attacker can execute arbitrary code outside the sandbox on iOS via a crafted HTML page due to an uninitialized variable in Chrome.

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-2026-78935?

CVE-2026-78935 is a critical memory corruption vulnerability in Google Chrome, published on 25 Aug 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

Use of uninitialized variable in Mobile in Google Chrome on on iOS prior to 152.0.7977.65 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)

Weakness: CWE-457

Which versions are affected by CVE-2026-78935?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-78935?

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-2026-78935 being exploited?

There is no known exploitation of CVE-2026-78935 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-78935, ECHO-21a3-15e9-f4d7, GHSA-hhcc-xj56-gmqc, MINI-xgxr-x5rx-6vxx.

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