CVE-2026-87646: Use After Free
Chromium CVE-2026-87646: Use after free in Web Authentication
Other sources
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Use after free in Web Authentication in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 153.0.4234.32 - Upgrade
Upgrade
Microsoft Edge (Chromium-based) / Google Chrome (Web Authentication)to a version that resolves this vulnerability.Fixed in 153.0.8010.36 - Upgrade
Upgrade
Google Chrome (Web Authentication)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
What must an attacker do to exploit this issue?
The attacker needs to induce the victim to load a crafted HTML page remotely. Successful exploitation can execute arbitrary code outside Chrome's sandbox.
Which Chrome versions should be remediated?
Google Chrome versions prior to 153.0.8010.36 are affected. Update Chrome to 153.0.8010.36 or a later version.