CVE-2026-17788 Information disclosure in Chrome

Medium 4.3 Published Updated

A remote attacker can leak cross-origin data via a crafted HTML page due to an inappropriate implementation in Blink.

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-2026-17788?

CVE-2026-17788 is a medium-severity vulnerability in Google Chrome, published on 30 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

Inappropriate implementation in Blink in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-346

Which versions are affected by CVE-2026-17788?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-17788?

Upgrade to a fixed version.

Is CVE-2026-17788 being exploited?

There is no known exploitation of CVE-2026-17788 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-17788, ECHO-44e1-8d1a-c494, GHSA-xf5r-63q4-hrxq, MINI-2jjw-43jh-xf5v.

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