CVE-2026-87639: Use After Free
Chromium CVE-2026-87639: Use after free in WebPackaging
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 WebPackaging in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially 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)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
What must an attacker achieve before this vulnerability can be exploited?
The attacker must first compromise the Chrome renderer process. The issue can then be triggered with a crafted HTML page to potentially execute code outside Chrome's sandbox.
Which Chrome versions are affected?
Google Chrome versions prior to 153.0.8010.36 are affected. The provided information does not identify affected operating systems or channels beyond Chrome desktop release information.
Does visiting a crafted page alone exploit this issue?
The provided description states that the renderer process must already be compromised. It does not establish that merely visiting a crafted HTML page is sufficient on its own.