CVE-2026-91713 Missing authorization in Chrome
A remote attacker with compromised renderer access can spoof UI elements in Google Chrome due to missing authorization checks.
- 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-2026-91713?
CVE-2026-91713 is a medium-severity missing authorization vulnerability in Google Chrome, published on 15 Sep 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
Missing authorization in Browser in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)
Weakness: CWE-862
Which versions are affected by CVE-2026-91713?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2026-91713?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-91713 being exploited?
There is no known exploitation of CVE-2026-91713 in the wild and no public exploit code.
Other vulnerabilities in Google Chrome
Sources
Also known as DEBIAN-CVE-2026-91713, ECHO-0472-d836-595e, GHSA-9qfv-7xp3-8h7q, MINI-4m4v-8jj9-r455.