CVE-2026-11268 in Chrome
Summary
by MITRE • 06/05/2026
Uninitialized Use in ANGLE in Google Chrome on Windows prior to 149.0.7827.53 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 • 06/06/2026
This vulnerability represents an uninitialized memory access issue within the ANGLE graphics library component of Google Chrome running on Windows systems. The flaw exists in how ANGLE handles certain graphics operations, specifically when processing crafted HTML content that triggers improper memory initialization states. The vulnerability falls under the CWE-457 category for use of uninitialized variables, which represents a fundamental programming error where memory locations are accessed without proper initialization. When a remote attacker crafts a malicious HTML page containing specific graphics operations, the uninitialized memory values can be inadvertently exposed to the attacker through cross-origin data leakage mechanisms.
The technical exploitation occurs through the graphics processing pipeline where ANGLE fails to properly initialize memory buffers before use in rendering operations. This uninitialized memory may contain residual data from previous operations, including sensitive information from other domains or applications. The vulnerability specifically impacts Windows deployments of Chrome before version 149.0.7827.53, indicating that the fix was implemented in that particular release. The Chromium security severity classification of Low suggests the direct impact is limited, but the cross-origin data leakage aspect presents significant privacy and security concerns.
The operational impact extends beyond simple information disclosure as this vulnerability enables attackers to potentially gather sensitive data from other origins that should be isolated. The attack vector requires remote code execution through web pages, making it particularly dangerous in phishing scenarios or compromised websites. The memory leakage occurs during graphics rendering operations, which means that even benign-looking web content could potentially expose information through the graphics subsystem. This vulnerability aligns with ATT&CK technique T1059.001 for execution through web-based payloads and T1566 for initial access via malicious websites.
Mitigation strategies should focus on immediate browser updates to version 149.0.7827.53 or later, which contains the necessary patches to address the uninitialized memory access. Additionally, organizations should implement network-level protections such as content security policies that restrict cross-origin resource access and consider deploying web application firewalls to detect and block suspicious HTML content. The fix typically involves proper initialization of memory buffers before graphics operations and implementing stricter validation of graphics parameters in the ANGLE component. Security monitoring should include detection of unusual graphics rendering patterns that might indicate exploitation attempts, particularly in environments where sensitive data is processed.