CVE-2026-79174: Medium Incorrect authorization in Extensions
Chromium: CVE-2026-79174 Incorrect authorization in Extensions
Other sources
Incorrect authorization in Extensions in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass web origin policy into a privileged page 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 for more information.
— Microsoft
Credit
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 152.0.4191.53 - Upgrade
Upgrade
Chromium/Google Chrome (Extensions)to a version that resolves this vulnerability.Fixed in 152.0.7977.65 - Compensating control
Mitigate exposure by preventing remote access that could compromise the renderer process, since a compromised renderer could bypass web origin policy to reach a privileged page via a crafted HTML page.
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What must an attacker achieve before this issue can be exploited?
The attacker must first compromise the Chrome renderer process. They can then use a crafted HTML page to bypass the web origin policy into a privileged page.
Which Chrome versions need to be updated?
Google Chrome versions earlier than 152.0.7977.65 are affected. Update Chrome to 152.0.7977.65 or later.