CVE-2026-79054 Use after free in Chrome
A remote attacker with compromised renderer access can execute arbitrary code outside the sandbox via a crafted HTML page in Google Chrome.
- 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-2026-79054?
CVE-2026-79054 is a high-severity use after free vulnerability in Google Chrome, published on 25 Aug 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
Use after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
Weakness: CWE-416
Which versions are affected by CVE-2026-79054?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2026-79054?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-79054 being exploited?
There is no known exploitation of CVE-2026-79054 in the wild and no public exploit code.
Other vulnerabilities in Google Chrome
Sources
Also known as DEBIAN-CVE-2026-79054, ECHO-25ba-f224-8d93, GHSA-v5h6-h63r-qg79, MINI-p7wq-cv63-94j4.