CVE-2026-17817 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 ReportingAndNEL.

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-2026-17817?

CVE-2026-17817 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 ReportingAndNEL 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-2026-17817?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-17817?

Upgrade to a fixed version.

Is CVE-2026-17817 being exploited?

There is no known exploitation of CVE-2026-17817 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-17817, ECHO-8b50-b395-f15a, GHSA-pq35-39hr-58r8, MINI-9rvh-wgv3-j3p9.

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