CVE-2026-91735: High severity Google Chrome vulnerability
Chromium CVE-2026-91735: Incorrect authorization
Other sources
Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.47 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
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
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
Chromium-based Microsoft Edgeto a version that resolves this vulnerability.Fixed in 153.0.8010.47 - Upgrade
Upgrade
Google Chrometo a version that resolves this vulnerability.Fixed in 153.0.8010.47
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
The attacker must first have compromised the Chrome renderer process. The issue can then potentially be exploited using a crafted HTML page to execute code outside the sandbox.
Which Chrome versions are affected?
Google Chrome versions prior to 153.0.8010.47 are affected.