CVE-2026-14403 Use after free in Chrome
A remote attacker can execute arbitrary code inside the sandbox via a crafted HTML page due to a use-after-free flaw in V8.
- 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-2026-14403?
CVE-2026-14403 is a high-severity use after free vulnerability in Google Chrome, published on 1 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
Use after free in V8 in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Low)
Weakness: CWE-416
Which versions are affected by CVE-2026-14403?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2026-14403?
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-2026-14403 being exploited?
There is no known exploitation of CVE-2026-14403 in the wild and no public exploit code.
Other vulnerabilities in Google Chrome
Sources
Also known as DEBIAN-CVE-2026-14403, ECHO-8a30-1167-7d8e, GHSA-5xh4-h2pm-54mv, MINI-82jc-hf4f-xx44.