CVE-2026-87634: Use After Free
Chromium CVE-2026-87634: 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 to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low)
— 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
Google Chrome (Chromium) WebPackagingto a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Users running Google Chrome versions earlier than 153.0.8010.36 may be exposed if they visit a crafted HTML page.
What does an attacker need to exploit it?
The vulnerability is remotely exploitable through a crafted HTML page. The available information does not state that authentication, local access, or user interaction beyond loading the page is required.
What is the security impact if exploitation succeeds?
A successful exploit could potentially allow arbitrary code execution outside Chrome's sandbox.
How can I determine whether a system is affected?
Check the installed Google Chrome version. Versions prior to 153.0.8010.36 are affected according to the available information.