CVE-2026-93373: Use After Free
Chromium CVE-2026-93373: Use after free in Extensions
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 Extensions in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted Chrome extension. (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 153.0.4234.48 - Upgrade
Upgrade
Google Chrometo a version that resolves this vulnerability.Fixed in 153.0.8010.52
Event History
Frequently Asked Questions
What does an attacker need to exploit this vulnerability?
The attacker needs to use a crafted Chrome extension. Successful exploitation allows remote arbitrary code execution outside Chrome’s sandbox.
Which Chrome versions should be remediated?
Google Chrome versions prior to 153.0.8010.52 are affected. Update affected installations to 153.0.8010.52 or later.
What can be done if updating immediately is not possible?
Limit or prevent installation and use of untrusted Chrome extensions until Chrome can be updated. The described attack requires a crafted extension.