CVE-2026-11283 in Chrome
Summary
by MITRE • 06/05/2026
Insufficient validation of untrusted input in Shortcuts in Google Chrome on Mac prior to 149.0.7827.53 allowed a remote attacker to bypass navigation restrictions via a malicious file. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 06/05/2026
This vulnerability resides in the Shortcuts functionality of Google Chrome on macOS systems prior to version 149.0.7827.53, representing a classic case of insufficient input validation that undermines the browser's security model. The flaw manifests when the application fails to properly validate untrusted input from malicious files, creating a pathway for remote attackers to circumvent intended navigation restrictions. The vulnerability operates at the intersection of input sanitization and access control mechanisms, where the browser's expectation of trusted file content is violated by crafted malicious inputs that exploit gaps in validation logic.
The technical implementation of this vulnerability stems from inadequate sanitization of file paths and content within the Shortcuts component, which is designed to allow users to create automated workflows. When a user interacts with a malicious file, the system's insufficient validation allows attacker-controlled data to influence navigation behavior in ways that were not intended. This represents a CWE-20 vulnerability category, specifically addressing improper input validation, and falls under the broader ATT&CK technique of T1059.007 for command and scripting interpreter. The flaw enables attackers to potentially redirect users to malicious websites or execute unintended actions through crafted file content that bypasses normal browser security boundaries.
The operational impact of this vulnerability extends beyond simple navigation bypass, as it could enable more sophisticated attacks such as phishing campaigns, malware delivery, or unauthorized access to user data. Attackers can craft malicious files that appear legitimate to users while simultaneously exploiting the vulnerability to redirect them to malicious domains or trigger unwanted browser behaviors. The low severity classification does not diminish the potential for exploitation in targeted attacks or when combined with other vulnerabilities, as the flaw essentially undermines the browser's ability to maintain secure boundaries between user interactions and system resources. This vulnerability particularly affects macOS users who may be exposed to malicious shortcuts through email attachments, web downloads, or other untrusted sources.
Mitigation strategies should focus on immediate remediation through Chrome updates to version 149.0.7827.53 or later, which contains the necessary validation fixes. Organizations should implement additional layers of protection including network-level filtering to block suspicious file types, user education regarding the risks of opening untrusted files, and monitoring for unusual navigation patterns that might indicate exploitation attempts. The vulnerability highlights the importance of defense-in-depth strategies, where multiple security controls work together to prevent exploitation even if individual protections fail. Security teams should also consider implementing application whitelisting policies that restrict which shortcut files can be executed, as well as regular vulnerability scanning to identify systems running outdated Chrome versions that remain susceptible to this and similar input validation flaws.