CVE-2026-11645 Google Chromium V8 Out-of-Bounds Read and Write
A remote attacker can execute arbitrary code inside the sandbox via a crafted HTML page exploiting out-of-bounds read and write in V8.
- Exploited in the wild
- Since 9 Jun 2026
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-11645?
CVE-2026-11645 is a high-severity memory corruption vulnerability in Google Chrome, published on 8 Jun 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
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Which versions are affected by CVE-2026-11645?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2026-11645?
Upgrade to a fixed version. US federal agencies must fix it by 23 Jun 2026.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-11645 being exploited?
Yes. Attackers have exploited CVE-2026-11645 in the wild since at least 9 Jun 2026.
Public exploit code: 4 proofs of concept on GitHub.
Other vulnerabilities in Google Chrome
Sources
Also known as DEBIAN-CVE-2026-11645, ECHO-1e0d-95c5-c92e, GHSA-x2hh-w9mw-3vq2, MINI-5r6f-jm55-9j3j.