CVE-2026-9998 Integer overflow in Chrome
A remote attacker with compromised renderer access can escape the sandbox via an integer overflow in Skia, requiring a browser upgrade.
- 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-2026-9998?
CVE-2026-9998 is a high-severity vulnerability in Google Chrome, published on 28 May 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
Integer overflow in Skia in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Weakness: CWE-472
Which versions are affected by CVE-2026-9998?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2026-9998?
Upgrade to a fixed version.
Is CVE-2026-9998 being exploited?
There is no known exploitation of CVE-2026-9998 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Google Chrome
Sources
Also known as DEBIAN-CVE-2026-9998, ECHO-d318-e371-f32f, GHSA-457m-jpvx-pqx9, MINI-c4mc-v49r-hcgh, UBUNTU-CVE-2026-9998.