CVE-2026-17905 in Chrome
Summary
by MITRE • 07/30/2026
Inappropriate implementation in SurfaceCapture in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 07/31/2026
The vulnerability resides within the SurfaceCapture component of Google Chrome, specifically affecting versions prior to 151.0.7922.72. This implementation flaw represents a cross-origin data leakage issue that enables remote attackers to access sensitive information from different origins through maliciously crafted HTML pages. The security implications stem from inadequate boundary checking and validation mechanisms within the surface capture functionality, which is typically responsible for handling graphical content rendering and capture operations.
The technical execution of this vulnerability involves exploiting insufficient origin validation controls within the Chrome browser's rendering pipeline. When processing crafted HTML content, the SurfaceCapture component fails to properly enforce same-origin policies, allowing malicious scripts to access data from cross-origin resources. This weakness falls under the category of improper access control implementations that can be categorized as CWE-284 Access Control Flaws, where the system does not properly restrict access to resources based on origin boundaries.
From an operational perspective, this vulnerability creates significant risks for users browsing the web, particularly in environments where multiple domains or origins are accessed simultaneously. The low severity classification indicates that while the attack vector is accessible remotely and does not require user interaction, it still represents a meaningful breach of browser security isolation mechanisms. Attackers could potentially extract sensitive information such as images, text content, or other graphical elements from different origins without proper authorization.
The impact extends beyond simple data leakage as it undermines fundamental web security principles including the same-origin policy that forms the cornerstone of browser security architecture. This vulnerability aligns with ATT&CK technique T1071.004 Application Layer Protocol: Web Protocols, where attackers exploit web application vulnerabilities to gain unauthorized access to resources. The flaw demonstrates how seemingly specialized components like SurfaceCapture can become attack vectors when proper security boundaries are not enforced.
Mitigation strategies should focus on immediate patching of affected Chrome versions to 151.0.7922.72 or later, which includes the necessary fixes for proper origin validation and boundary enforcement within the SurfaceCapture functionality. Organizations should also consider implementing additional network-level protections such as content security policies and web application firewalls to provide defense-in-depth measures. Regular security auditing of browser components and staying current with security updates remains critical in preventing exploitation of similar vulnerabilities that may exist in other parts of the browser ecosystem.
This vulnerability highlights the ongoing challenge in maintaining secure browser implementations where specialized components like SurfaceCapture must properly enforce security boundaries while maintaining functionality for legitimate use cases. The fix implemented by Google addresses the specific validation gaps that allowed cross-origin data access, reinforcing the importance of comprehensive testing and security review processes for all browser components, particularly those handling multimedia and graphical content rendering operations.