CVE-2026-12009

Severity: high (CVSS 8.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-11 · updated 2026-10-26
Weakness: CWE-20

Description

Insufficient validation of untrusted input in Accessibility in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

Affected products

Google Chrome: before 149.0.7827.115 — fixed in 149.0.7827.115

How to fix

Upgrade to a fixed version: Google Chrome 149.0.7827.115. Check the vendor advisory for mitigations.

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html
https://issues.chromium.org/issues/517332006

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