Use after free in Accessibility in Google Chrome on on Mac prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process t

Summary

Use after free in Accessibility in Google Chrome on on Mac prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Remediation

1. Inventory every Google Chrome deployment, including staging.
2. Upgrade Google Chrome to 156.0.8078.47.
3. Confirm the running version after the upgrade.

References

• Advisoryhttps://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html
• Referencehttps://issues.chromium.org/issues/555337558