CVE-2026-17992
Summary
by MITRE • 07/30/2026
Uninitialized Use in Skia in Google Chrome on Windows prior to 151.0.7922.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 07/30/2026
The vulnerability under discussion represents an uninitialized use flaw within the Skia graphics library component of Google Chrome browser, specifically affecting Windows installations prior to version 151.0.7922.72. This issue falls under the Common Weakness Enumeration category CWE-457, which addresses the use of uninitialized variables in software development practices. The vulnerability manifests when Chrome processes crafted HTML content that triggers improper initialization of memory variables within the Skia rendering engine, creating a potential information disclosure vector.
The technical exploitation of this vulnerability occurs through remote code execution via web-based attacks where malicious actors craft HTML pages designed to trigger the uninitialized memory access pattern. When Chrome renders such pages, the Skia graphics library fails to properly initialize certain memory locations before use, potentially exposing sensitive data from adjacent memory regions to attackers. This type of vulnerability is particularly concerning as it operates at the rendering engine level and can be triggered through standard web browsing activities without requiring user interaction beyond visiting a malicious website.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposure of process memory can potentially reveal cryptographic keys, authentication tokens, or other sensitive application data. The Chromium security severity classification of Low indicates that while the vulnerability does not directly enable arbitrary code execution or privilege escalation, it represents a significant privacy and data protection concern. Attackers could leverage this flaw to gather intelligence about running processes, potentially aiding in more sophisticated attacks targeting user sessions or system credentials.
Mitigation strategies for this vulnerability primarily involve updating to Chrome version 151.0.7922.72 or later, which includes patches addressing the uninitialized memory access issue within the Skia library. System administrators should implement comprehensive patch management procedures to ensure timely deployment of security updates across all affected systems. Additional protective measures include implementing web content filtering solutions that can block known malicious domains and employing browser hardening techniques such as sandboxing and strict content security policies. The vulnerability demonstrates the importance of memory safety practices in graphics rendering libraries and highlights the need for rigorous input validation and proper initialization procedures in complex software components. Organizations should also consider monitoring network traffic for indicators of exploitation attempts and maintain up-to-date threat intelligence to identify potential attacks targeting this specific vulnerability class.