CVE-2026-91731

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-15 · updated 2026-09-17
Weakness: CWE-843

Description

Type confusion in Compositing in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Affected products

Google Chrome: before 153.0.8010.47 — fixed in 153.0.8010.47

How to fix

Upgrade to a fixed version: Google Chrome 153.0.8010.47. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html
https://issues.chromium.org/issues/523554372

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