CVE-2026-19558

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-11 · updated 2026-10-23
Weakness: CWE-416

Description

Use after free in Extensions in Google Chrome prior to 151.0.7922.137 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: High)

Affected products

Google Chrome: before 151.0.7922.137 — fixed in 151.0.7922.137

How to fix

Upgrade to a fixed version: Google Chrome 151.0.7922.137. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01815628406.html
https://issues.chromium.org/issues/536676756

Get alerted when CVE-2026-19558 or the next vulnerability affects your stack