CVE-2026-91715: High severity Google Chrome vulnerability
Chromium CVE-2026-91715: Type confusion
Other sources
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases](https://chromereleases.googleblog.com/2026)) for more information.
— Microsoft
Type confusion in ServiceWorker in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside 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 153.0.4234.46 - Upgrade
Upgrade
Google Chrome (Chromium)to a version that resolves this vulnerability.Fixed in 153.0.8010.47 - Compensating control
Because this is exploitable via a crafted HTML page that targets ServiceWorker, restrict access/usage of untrusted HTML content (e.g., block or sandbox untrusted pages) until Chromium/Edge are updated.
Event History
Frequently Asked Questions
What does an attacker need to exploit this issue?
The attacker needs to convince a user to load a crafted HTML page remotely. Successful exploitation allows arbitrary code execution inside the Chrome sandbox.
Which Chrome versions need to be updated?
Google Chrome versions prior to 153.0.8010.47 are affected. Update Chrome to 153.0.8010.47 or a later version.