CVE-2026-95288 in Chrome
Summary
by MITRE • 09/29/2026
UI misrepresentation in Mobile in Google Chrome on on iOS prior to 154.0.8037.57 allowed a remote attacker to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 09/29/2026
The vulnerability identified as a user interface misrepresentation flaw within the mobile version of Google Chrome on iOS prior to version 154.0.8037.57 represents a significant trust boundary violation that undermines the integrity of the browser's rendering engine and its interaction with the operating system shell. This issue stems from an improper handling of layout calculations or DOM manipulation events, which allows a remote attacker to inject crafted HTML content that forces the browser window to render elements in a manner inconsistent with their actual position or function within the page structure. By exploiting this discrepancy, an adversary can overlay deceptive UI components over legitimate interface controls, effectively creating a visual illusion where malicious actions appear as benign system interactions. This type of attack is particularly insidious because it relies on social engineering tactics amplified by technical deception, leading users to believe they are interacting with trusted browser features or secure application interfaces when they are actually triggering unintended behaviors within the web context.
From a technical perspective, this flaw aligns closely with CWE-201, which describes insertion of sensitive information into an external component in a way that exposes it to unauthorized actors, although more specifically it maps to CWE-839: A numeric error allows writing past the end of an array or buffer if negative numbers are used. In the context of UI spoofing, this often manifests as CSS positioning errors or JavaScript-driven DOM injection techniques that bypass standard sandbox restrictions by leveraging legitimate rendering pipelines to place elements in deceptive locations. The attacker crafts a malicious webpage containing specific HTML and CSS structures designed to exploit how Chrome on iOS calculates viewport boundaries and z-index stacking contexts. When the user interacts with what appears to be a harmless button or link, they may inadvertently trigger actions such as downloading malware, submitting credentials to a phishing site, or granting permissions that were not explicitly consented to in a clear manner. This manipulation of visual cues directly impacts the confidentiality and integrity aspects of security by deceiving the end-user into making unauthorized decisions based on false premises presented through the browser interface.
The operational impact of this vulnerability is primarily centered around increased susceptibility to phishing attacks and drive-by download attempts that rely heavily on user trust in the browser's UI consistency. Since mobile browsers often share screen space with native iOS applications, any distortion in how web content relates to system chrome can lead users to mistake malicious pop-ups for legitimate system alerts or notifications. This erosion of visual integrity reduces the effectiveness of security warnings and increases the success rate of social engineering campaigns targeting mobile device owners who may be less vigilant than desktop users due to smaller screen real estate and faster interaction patterns. The severity is classified as low by Chromium standards because it typically requires user interaction with a specifically crafted page rather than automatic execution, yet its potential for widespread exploitation in phishing scenarios keeps it relevant for security monitoring and patching priorities.
Mitigation strategies focus on both immediate remediation through software updates and long-term architectural improvements to prevent similar UI spoofing techniques. The primary defense is upgrading Google Chrome to version 154.0.8037.57 or later, where the underlying rendering engine has been patched to correctly enforce layout constraints and prevent unauthorized overlay of system-level elements with web content. Additionally, users should enable strict Content Security Policy (CSP) implementations on websites they visit frequently, as CSP can restrict how scripts manipulate DOM structures in ways that facilitate such spoofing attacks. From a defensive posture perspective, organizations should educate mobile device users about the importance of verifying URL bars and certificate indicators before interacting with any prompts or buttons, regardless of their visual appearance within the browser window. Furthermore, developers integrating web views into native iOS applications must ensure they are using up-to-date WebKit components that adhere to strict sandboxing rules, thereby reducing the attack surface for similar UI manipulation vulnerabilities across different mobile browsers and embedded web contexts.