CVE-2026-11202 in Chrome
Summary
by MITRE • 06/05/2026
Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 06/05/2026
This vulnerability represents a sandbox escape flaw in the iOS version of Google Chrome browser that existed prior to version 149.0.7827.53. The issue stems from an inappropriate implementation within the browser's security architecture that allows remote attackers to potentially bypass the sandbox protection mechanisms that are fundamental to modern web browsers. The vulnerability specifically affects the iOS variant of Chrome where the sandbox isolation between the browser process and the underlying operating system is compromised. Such sandbox escape vulnerabilities are particularly dangerous because they can allow attackers to execute arbitrary code with elevated privileges, potentially gaining access to sensitive user data or system resources. The Chromium security severity rating of medium indicates that while the vulnerability is not trivial to exploit, it presents a meaningful risk to user security and privacy.
The technical implementation flaw manifests when a maliciously crafted HTML page is loaded within the browser context. This crafted page leverages specific browser behaviors or API misuses that were not properly validated or restricted within the iOS browser environment. The vulnerability exploits the gap between the expected security boundaries and the actual implementation of sandbox controls, allowing code execution that should be confined to the browser's restricted environment to potentially escape and interact with the underlying iOS system. This type of vulnerability typically involves sophisticated exploitation techniques that may utilize memory corruption issues, privilege escalation mechanisms, or improper input validation within the browser's rendering engine. The security implications extend beyond simple information disclosure, as successful exploitation could lead to complete system compromise or unauthorized access to user data.
The operational impact of this vulnerability is significant for users of iOS devices who rely on Chrome for their web browsing activities. Mobile users are particularly at risk since the iOS platform has different security characteristics compared to desktop operating systems, and the sandbox implementation may have specific weaknesses that are more easily exploited in mobile environments. The vulnerability affects all users of Chrome for iOS who have not updated to version 149.0.7827.53 or later, creating a substantial attack surface for threat actors who may develop or deploy exploits targeting this specific implementation gap. Organizations that depend on Chrome for iOS for business productivity or user access may face increased risk of data breaches or unauthorized access to sensitive information. The medium severity rating suggests that while not a critical vulnerability, it requires immediate attention and patching to maintain security posture and protect user privacy.
Mitigation strategies for this vulnerability primarily involve updating to the patched version of Chrome for iOS 149.0.7827.53 or later, which contains the necessary security fixes to address the sandbox escape implementation flaw. System administrators and users should prioritize applying this update immediately to protect against potential exploitation attempts. Additional defensive measures include implementing network-based security controls such as web application firewalls and content filtering systems that can detect and block suspicious HTML content. Regular security monitoring and vulnerability scanning should be conducted to identify any remaining exposure risks. The vulnerability aligns with CWE-276, which covers improper privileges, and may relate to ATT&CK technique T1059 for command and scripting interpreter and T1068 for exploit for privilege escalation. Organizations should also consider implementing browser hardening measures and user education to reduce the risk of visiting malicious websites that may contain exploit code targeting this vulnerability.