CVE-2026-17851 Information disclosure in Chrome
A remote attacker with compromised renderer access can leak cross-origin data via a crafted HTML page due to side-channel leakage in Autofill.
- 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-2026-17851?
CVE-2026-17851 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
Side-channel information leakage in Autofill in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Weakness: CWE-1300
Which versions are affected by CVE-2026-17851?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2026-17851?
Upgrade to a fixed version.
Is CVE-2026-17851 being exploited?
There is no known exploitation of CVE-2026-17851 in the wild and no public exploit code.
Other vulnerabilities in Google Chrome
Sources
Also known as DEBIAN-CVE-2026-17851, ECHO-951a-8151-48ff, GHSA-gvh4-9j76-m35h, MINI-hh9r-mj8m-pv3r.