CVE-2026-14136
Summary
by MITRE • 07/01/2026
Insufficient validation of untrusted input in Chrome for iOS in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 07/01/2026
This vulnerability represents a critical weakness in the input validation mechanisms of Google Chrome for iOS, specifically affecting versions prior to 150.0.7871.47. The flaw manifests as insufficient sanitization of untrusted input within the browser's rendering engine, creating an avenue for malicious actors to manipulate user interface elements through carefully crafted HTML content. The vulnerability falls under the broader category of UI spoofing attacks that can deceive users into believing they are interacting with legitimate web content while actually being subjected to malicious deception.
The technical implementation of this vulnerability stems from inadequate validation processes within Chrome's iOS variant that fails to properly sanitize or validate HTML elements before rendering them to users. When a user visits a maliciously crafted webpage, the browser does not sufficiently verify the integrity of input data, allowing attackers to inject deceptive UI components that can mimic legitimate browser interfaces or website elements. This weakness enables threat actors to create convincing fake login forms, payment portals, or other critical interface elements designed to capture user credentials or sensitive information.
From an operational impact perspective, this vulnerability exposes users to significant risk of credential theft and financial fraud through social engineering attacks. The low severity classification according to Chromium security standards does not diminish the practical dangers faced by end users who may unknowingly interact with spoofed interfaces that appear authentic. Attackers can leverage this vulnerability to create highly convincing phishing experiences that bypass traditional security measures, as the spoofed elements are rendered natively within the browser without triggering standard warning mechanisms.
The attack surface for this vulnerability extends across all Chrome for iOS users running affected versions, making it particularly concerning given the widespread adoption of mobile browsers. Cybersecurity frameworks such as CWE 170 identify this as a weakness in input handling where improper validation allows malicious data to be processed and rendered without adequate security checks. This aligns with ATT&CK technique T1531 which covers "Modify System Image" through UI spoofing, demonstrating how attackers can manipulate user perception through interface manipulation rather than traditional code injection methods.
Organizations and individual users should immediately update to Chrome version 150.0.7871.47 or later to remediate this vulnerability. Security teams should implement network-level monitoring for suspicious HTML content delivery and consider deploying additional browser security controls such as Content Security Policy enforcement. The mitigation strategy should also include user education about recognizing potential spoofing attempts, particularly when encountering unexpected login prompts or financial interfaces within web browsers. Regular security assessments of mobile browser configurations and proactive patch management remain essential defensive measures against similar vulnerabilities in the future.