CVE-2026-17812 in Chrome
Summary
by MITRE • 07/30/2026
Inappropriate implementation in DigitalCredentials in Google Chrome prior to 151.0.7922.72 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 • 07/30/2026
The vulnerability under discussion represents a significant UI spoofing flaw within Google Chrome's DigitalCredentials implementation, affecting versions prior to 151.0.7922.72. This issue resides in the browser's handling of digital credential management systems that enable secure authentication through web-based identity providers. The flaw stems from insufficient validation mechanisms within the user interface components responsible for displaying credential-related information during authentication processes. Attackers can exploit this weakness by crafting malicious HTML pages that manipulate the visual presentation of credential prompts, potentially deceiving users into providing sensitive authentication data to fraudulent endpoints. Such vulnerabilities typically arise when browser components fail to properly isolate or validate content originating from untrusted sources, creating opportunities for malicious actors to manipulate user perception during critical security interactions.
The technical execution of this vulnerability leverages the browser's trust model and rendering pipeline where DigitalCredentials interfaces are displayed to users. When Chrome processes HTML content containing crafted elements designed to mimic legitimate credential prompts, the insufficient sandboxing or validation mechanisms fail to prevent unauthorized modification of UI components. This allows attackers to overlay deceptive interfaces that appear authentic while directing users to malicious endpoints. The flaw specifically impacts the user interface layer where credential information is presented, making it particularly dangerous as users may not distinguish between genuine and manipulated prompts. From a cybersecurity perspective, this vulnerability aligns with common attack patterns found in CWE-602, which addresses "Client Side Enforcement of Server Side Security" failures, where client-side validation mechanisms are bypassed or manipulated by malicious actors.
The operational impact of this vulnerability extends beyond simple deception attacks as it undermines fundamental trust mechanisms within the browser's authentication infrastructure. Users may unknowingly enter credentials into fraudulent interfaces while believing they are interacting with legitimate services, potentially leading to credential theft and account compromise across multiple platforms. The medium severity classification reflects the balance between exploitability and the requirement for user interaction through a crafted web page, though this still represents a significant threat vector given the widespread use of Chrome browsers. Organizations implementing digital credential systems may face increased risks of successful social engineering attacks that leverage this vulnerability to bypass traditional authentication security measures. Security professionals should consider this weakness when assessing browser security configurations and user training programs related to credential management.
Mitigation strategies for this vulnerability primarily focus on immediate browser updates to versions 151.0.7922.72 or later where the implementation has been corrected. System administrators should prioritize deployment of updated browser versions across enterprise environments, particularly in scenarios where users may encounter untrusted web content. Additional protective measures include implementing browser security policies that restrict access to potentially malicious sites and enhancing user awareness training regarding credential authentication processes. Organizations should also consider monitoring for suspicious credential usage patterns that might indicate successful exploitation attempts. From a defensive standpoint, this vulnerability highlights the importance of maintaining robust validation mechanisms in UI components and implementing proper separation between trusted and untrusted content rendering. The fix likely involves strengthening input sanitization and UI isolation techniques to prevent malicious HTML elements from manipulating credential presentation interfaces, aligning with ATT&CK technique T1531 for Credential Access through manipulation of authentication prompts.