CVE-2026-19143 Path traversal in Chrome

High 8.6 Published Updated

A local attacker can escape the sandbox via a malicious file due to insufficient input validation in WebAPKs on Android.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-19143?

CVE-2026-19143 is a high-severity path traversal vulnerability in Google Chrome, published on 6 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Insufficient validation of untrusted input in WebAPKs in Google Chrome on Android prior to 151.0.7922.109 allowed a local attacker to potentially perform a sandbox escape via a malicious file. (Chromium security severity: High)

Weakness: CWE-20

Which versions are affected by CVE-2026-19143?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-19143?

Upgrade to a fixed version.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-19143 being exploited?

There is no known exploitation of CVE-2026-19143 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-19143, ECHO-2843-c6b7-fd95, GHSA-ff4p-927c-7922, MINI-8m2m-3mcv-wx7h.

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