CVE-2026-113897 in iOS
Summary
by MITRE • 10/26/2026
This issue was addressed by removing the vulnerable code. This issue is fixed in Safari 27.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2. A remote attacker may be able to break out of Web Content sandbox.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 10/27/2026
The vulnerability described involves a critical failure in the isolation mechanisms that protect web content within Apple's ecosystem, specifically affecting Safari and related operating systems including iOS, iPadOS, macOS, and visionOS at version 27.2. The core technical flaw lies in the Web Content sandbox, which is designed to restrict the privileges of processes rendering web pages to prevent malicious code from accessing sensitive system resources or user data. When this isolation mechanism fails, it allows a remote attacker who can trick a user into visiting a specially crafted website to escape these restrictive boundaries. This type of vulnerability is typically classified under CWE-269, which refers to Improper Privilege Management, as the exploited process gains higher-level access than intended by the security architecture.
The operational impact of such an exploit is severe because it effectively neutralizes one of the primary defenses against web-based attacks. By breaking out of the Web Content sandbox, an attacker can potentially execute arbitrary code with elevated privileges on the host system. This could lead to unauthorized access to personal files, installation of persistent malware, or further lateral movement within a network if the device is connected to corporate infrastructure. The ability to escape the sandbox means that protections like same-origin policy and content security policies are bypassed at the operating system level, allowing direct interaction with APIs and services that should remain inaccessible to web applications.
This specific issue was addressed by Apple through the removal of the vulnerable code responsible for the isolation failure. Such remediation strategies often involve refactoring how memory is managed or how inter-process communication channels are validated within the browser engine. The fix ensures that any attempt to exploit the sandbox boundary results in a controlled termination rather than an escape, thereby restoring the integrity of the security model. Users and administrators must ensure they have applied these updates across all affected platforms to mitigate the risk of remote code execution via malicious web content.
From a threat intelligence perspective, this vulnerability aligns with techniques observed in advanced persistent threats that target browser-based entry points. It relates to MITRE ATT&CK technique T1059, Command and Scripting Interpreter, as escaping the sandbox often enables the execution of system commands or scripts. Additionally, it connects to T1218, System Binary Proxy Execution, if the exploit leverages legitimate system binaries for further exploitation. Organizations should prioritize patch management cycles to ensure these updates are deployed promptly across all endpoints. Security teams should also monitor for indicators of compromise that suggest attempts to leverage browser vulnerabilities, such as unusual network connections from web processes or unexpected privilege escalation events in endpoint detection and response logs.