CVE-2026-13940 Information disclosure in Chrome

Medium 6.5 Published Updated

An attacker on the local network can read sensitive process memory in Google Chrome via malicious traffic due to uninitialized use in Cast.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-13940?

CVE-2026-13940 is a medium-severity vulnerability in Google Chrome, published on 30 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Uninitialized Use in Cast in Google Chrome prior to 150.0.7871.47 allowed an attacker on the local network segment to obtain potentially sensitive information from process memory via malicious network traffic. (Chromium security severity: Medium)

Weakness: CWE-457

Which versions are affected by CVE-2026-13940?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-13940?

Upgrade to a fixed version.

Is CVE-2026-13940 being exploited?

There is no known exploitation of CVE-2026-13940 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-13940, ECHO-9757-2ccf-bac5, GHSA-3m3v-363x-rf9h, MINI-r59p-c2qw-mq48.

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