CVE-2026-7935 in Chrome
Summary
by MITRE • 05/06/2026
Inappropriate implementation in Speech in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 05/17/2026
The vulnerability in Google Chrome's speech implementation represents a significant security flaw that could enable remote attackers to manipulate user interfaces through malicious web content. This issue affects versions prior to 148.0.7778.96 and falls under the category of user interface spoofing attacks that exploit improper handling of speech-related web APIs. The vulnerability stems from inadequate validation and sanitization of speech-related HTML elements, allowing malicious actors to craft specially designed web pages that can deceive users into believing they are interacting with legitimate system interfaces.
The technical implementation flaw resides in how Chrome processes and renders speech-related user interface elements when encountering crafted HTML content. When a user visits a malicious webpage containing carefully constructed speech API calls, the browser fails to properly isolate or validate these elements, potentially allowing attackers to overlay fake interface components over legitimate ones. This misimplementation creates an attack surface where malicious actors can manipulate the visual presentation of speech features to mimic system dialogs or important application interfaces. The vulnerability specifically impacts Chrome's speech recognition and synthesis capabilities, where the browser's rendering engine does not adequately distinguish between trusted and untrusted speech interface components, enabling attackers to exploit this gap in validation logic.
The operational impact of this vulnerability extends beyond simple visual deception to potentially enable more sophisticated attacks. Users may be misled into providing sensitive information or performing actions they would not normally undertake if they believed they were interacting with legitimate system interfaces. This UI spoofing capability can be particularly dangerous when combined with other attack vectors, as it can facilitate social engineering campaigns that appear more authentic and trustworthy. The medium severity classification indicates that while the vulnerability does not directly enable code execution or data theft, it creates a credible pathway for user manipulation that could lead to more serious security incidents. Attackers could leverage this flaw to craft convincing phishing attempts or to trick users into granting unauthorized access to speech-enabled applications or services.
Mitigation strategies should focus on updating to the patched version of Google Chrome 148.0.7778.96 or later, which includes proper validation mechanisms for speech-related UI elements. Organizations should implement browser hardening measures and consider deploying web application firewalls that can detect and block suspicious speech API usage patterns. Additionally, user education regarding the risks of visiting untrusted websites and the importance of verifying interface authenticity can help reduce the likelihood of successful exploitation. The vulnerability aligns with CWE-602, which addresses client-side restrictions that can be bypassed by attackers, and maps to ATT&CK technique T1566.001 for social engineering through spearphishing attachments and links, as the UI spoofing aspect creates an environment conducive to such attacks. Security teams should monitor for any attempts to exploit this vulnerability through network traffic analysis and browser security event logging to detect potential exploitation attempts.