Critical Sandbox Escape via UAF in Google Chrome on Windows - CVE-2026-11634

Sandbox escape in Google Chrome on Linux prior to 149.0.7827.103 can be triggered by an integer overflow in the browser's UI component when a victim visits a crafted HTML page. Rated CVSS 9.6 with scope change, this issue allows a remote attacker to break out of the Chrome renderer sandbox after one click or navigation, though no public exploit identified at time of analysis and the flaw is not listed in CISA KEV.

Sandbox escape in Google Chrome versions prior to 149.0.7827.103 enables remote attackers to break out of the browser's renderer sandbox via a crafted HTML page that triggers a use-after-free in the Printing component. Chromium rated this issue Critical severity, and the CVSS scope change (S:C) confirms the sandbox boundary is crossed; no public exploit identified at time of analysis, but the attack only requires the victim to load attacker-controlled content.

Remote code execution in Google Chrome's Network component before version 149.0.7827.103 allows a remote attacker to execute arbitrary code within the renderer sandbox by luring a user to a crafted HTML page. The flaw is a use-after-free (CWE-416) classified High severity by Chromium with a CVSS 9.6 due to scope change and user-interaction prerequisite. No public exploit identified at time of analysis, but a vendor patch is already shipped via the Stable channel update.

Sandbox escape in Google Chrome for Mac (versions prior to 149.0.7827.103) stems from a use-after-free condition in the CameraCapture component, enabling a remote attacker to break out of the renderer sandbox via a crafted HTML page. With a CVSS of 9.6 (scope-changed, high impact across CIA) and an upstream fix released by Google, the bug carries high severity but requires user interaction to load the malicious page; no public exploit identified at time of analysis.

Sandbox escape in Google Chrome before 149.0.7827.103 allows a remote attacker to break out of the renderer sandbox through a use-after-free in the Navigation component when a victim visits a crafted HTML page. The CVSS 9.6 score reflects a scope-changing impact on confidentiality, integrity, and availability with only user interaction (visiting a page) required, and no public exploit was identified at time of analysis.

Sandbox escape in Google Chrome prior to 149.0.7827.103 allows a remote attacker to break out of the browser's renderer sandbox via a crafted HTML page that exploits insufficient input validation in the UI layer. The scope-changing CVSS 9.6 reflects that successful exploitation crosses the sandbox security boundary, though user interaction (visiting a malicious page) is required. No public exploit identified at time of analysis and the issue is not currently listed in CISA KEV, but Google rates the underlying Chromium severity as High.

Heap corruption in Google Chrome's File Input component before version 149.0.7827.103 allows a remote attacker to exploit a use-after-free condition by luring a user to a crafted HTML page, with Chromium rating the issue Critical. No public exploit identified at time of analysis, but the high CVSS 8.8 score and browser attack surface make this a priority patch for desktop fleets.

Heap corruption in Google Chrome's Ozone display server component prior to version 149.0.7827.103 allows remote attackers to exploit a use-after-free condition through a malicious web page, with Chromium rating this as Critical severity. Successful exploitation requires the victim to visit attacker-controlled HTML content, but yields high impact on confidentiality, integrity, and availability in the renderer process. No public exploit identified at time of analysis, and the issue is not currently listed in CISA KEV.