CVE-2026-17772 in Chrome
Summary
by MITRE • 07/30/2026
Out of bounds read in WebGL in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical memory safety issue within the WebGL graphics rendering component of Google Chrome browsers prior to version 151.0.7922.72. The flaw manifests as an out of bounds memory read condition that occurs when processing WebGL content, specifically in how the browser handles certain graphics operations within the WebGL API implementation. The vulnerability falls under the common weakness enumeration CWE-125 which describes out-of-bounds read conditions where an application accesses memory beyond the boundaries of a valid buffer or array. This type of vulnerability typically arises from insufficient bounds checking during array indexing operations or improper validation of user-supplied data within graphics processing pipelines.
The security implications of this vulnerability extend beyond simple memory access violations as it creates potential attack vectors for remote code execution and information disclosure. When a remote attacker crafts a malicious HTML page containing specially designed WebGL content, the browser's rendering engine can be tricked into reading memory locations that are outside the intended bounds of allocated buffers. This behavior can lead to data leakage from sensitive memory regions, potentially exposing credentials, session tokens, or other confidential information stored in adjacent memory locations. The Chromium security severity rating of Medium reflects the potential for significant impact despite requiring user interaction through visiting a malicious webpage.
The operational impact of this vulnerability affects users running Chrome versions earlier than 151.0.7922.72 who visit compromised websites or click on malicious links containing WebGL content. Attackers can exploit this weakness by embedding crafted WebGL code within HTML documents that, when rendered by the browser, trigger the out of bounds read condition. This attack vector aligns with the ATT&CK technique T1059.008 which involves the use of scripting languages for execution and demonstrates how graphics APIs can be weaponized for memory corruption attacks. The vulnerability specifically targets the WebGL implementation within Chrome's rendering pipeline, making it particularly dangerous in environments where users frequently visit untrusted websites or where web-based graphics applications are commonly used.
Mitigation strategies for this vulnerability primarily focus on immediate browser updates to version 151.0.7922.72 or later, which contains the necessary patches to address the out of bounds read condition. Organizations should implement comprehensive patch management processes to ensure all Chrome installations are updated promptly, particularly in enterprise environments where users may be exposed to various web-based threats. Additional protective measures include implementing web application firewalls that can detect and block suspicious WebGL content, enabling sandboxing features within the browser to limit potential damage from exploitation attempts, and deploying security monitoring tools that can detect anomalous memory access patterns. Network-level protections such as content filtering systems and browser security policies can also help reduce exposure by preventing access to known malicious domains. The vulnerability underscores the importance of keeping web browsers updated and demonstrates how graphics APIs like WebGL require careful security auditing due to their complex memory management requirements and potential for exploitation through user-supplied content.