CVE-2026-113321

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: 2026-10-20 · updated 2026-10-21
Weakness: CWE-416

Description

Use after free in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Affected products

Google Chrome: before 156.0.8078.47 — fixed in 156.0.8078.47

How to fix

Upgrade to a fixed version: Google Chrome 156.0.8078.47. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html
https://issues.chromium.org/issues/513521516

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