CVE-2026-14057 Security feature bypass in Chrome

Medium 4.3 Published Updated

A remote attacker can bypass same-origin policy in Google Chrome via a crafted HTML page due to an inappropriate FedCM implementation.

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-2026-14057?

CVE-2026-14057 is a medium-severity vulnerability in Google Chrome, published on 30 Jun 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 FedCM in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-346

Which versions are affected by CVE-2026-14057?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-14057?

Upgrade to a fixed version.

Is CVE-2026-14057 being exploited?

There is no known exploitation of CVE-2026-14057 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-14057, ECHO-570f-ef0f-0bb2, GHSA-8qp8-73pf-8g22, MINI-98r4-mvwj-qf97.

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