CVE-2026-17840 Security feature bypass in Chrome
Remote attackers can spoof domains via crafted HTML pages due to incorrect security UI in Google Chrome, requiring users to upgrade to the latest version.
- 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-2026-17840?
CVE-2026-17840 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
Incorrect security UI in Passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to perform domain spoofing via a crafted HTML page. (Chromium security severity: Medium)
Weakness: CWE-451
Which versions are affected by CVE-2026-17840?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2026-17840?
Upgrade to a fixed version.
Is CVE-2026-17840 being exploited?
There is no known exploitation of CVE-2026-17840 in the wild and no public exploit code.
Other vulnerabilities in Google Chrome
Sources
Also known as DEBIAN-CVE-2026-17840, ECHO-e72f-2e4a-132c, GHSA-rw9v-fqfw-2qxc, MINI-p49c-xc9f-jhh5.