CVE-2026-17715 in Chrome
Summary
by MITRE • 07/30/2026
Inappropriate implementation in Passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical cross-origin information disclosure flaw in Google Chrome's password handling mechanisms prior to version 151.0.7922.72. The issue stems from an insecure implementation that fails to properly validate user interactions and origin boundaries when processing password-related UI elements. Attackers could exploit this weakness by crafting malicious HTML pages designed to诱导 users into performing specific UI gestures that would trigger unintended data leakage across domain boundaries.
The technical flaw manifests in the browser's insufficient validation of cross-origin contexts during password management operations. When users encounter crafted web pages, specific user interactions can cause Chrome to inadvertently expose password-related information or authentication tokens from different origins. This occurs due to inadequate sandboxing and context isolation mechanisms that should prevent unauthorized data access between websites. The vulnerability operates at the intersection of browser UI handling and security boundary enforcement, creating a pathway for attackers to bypass normal cross-origin restrictions.
The operational impact of this vulnerability is significant as it enables remote attackers to perform cross-site information leakage without requiring direct network access to target systems. An attacker could construct phishing pages that, when visited by users with active sessions on other websites, would extract sensitive authentication data or password-related metadata from Chrome's internal storage mechanisms. This threat model aligns with attack patterns classified under the mitre attack framework as credential access techniques, specifically targeting browser-based authentication mechanisms.
The security implications extend beyond simple data leakage to encompass potential account takeover scenarios and broader credential compromise operations. Users who interact with malicious pages while logged into multiple services could inadvertently expose session tokens or authentication contexts from different domains. This vulnerability would typically be classified under common weakness enumeration as CWE-200 Information Exposure, with potential connections to CWE-352 Cross-Site Request Forgery and CWE-79 HTML Injection vulnerabilities.
Mitigation strategies should prioritize immediate browser updates to versions 151.0.7922.72 or later where the vulnerability has been patched. Organizations should implement comprehensive user education programs to recognize and avoid suspicious web interactions, particularly those that require specific UI gestures or appear to manipulate browser behavior. Network-level protections such as content security policies and strict origin validation can provide additional defense layers. Security teams should monitor for indicators of compromise related to suspicious password-related browser events and maintain updated threat intelligence on similar cross-origin exploitation patterns.
The patched version addresses the root cause by implementing stricter validation of user interactions and enhancing cross-origin context isolation during password management operations. Browser vendors typically resolve such issues through improved sandboxing mechanisms and more rigorous input validation at the UI interaction layer. Organizations should also consider deploying browser security extensions that provide additional protection against malicious website interactions and maintain regular patch management schedules to ensure timely vulnerability remediation across all browser clients.