CVE-2026-78956

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-25 · updated 2026-08-27
Weakness: CWE-843

Description

Type confusion in V8 in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)

Affected products

Google Chrome: before 152.0.7977.65 — fixed in 152.0.7977.65

How to fix

Upgrade to a fixed version: Google Chrome 152.0.7977.65. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html
https://issues.chromium.org/issues/520016142

Get alerted when CVE-2026-78956 or the next vulnerability affects your stack