CVE-2026-18005 in Chrome
Summary
by MITRE • 07/30/2026
Inappropriate implementation in WebXR in Google Chrome 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
This vulnerability represents an information disclosure issue within Google Chrome's WebXR implementation that existed prior to version 151.0.7922.72. The flaw stems from improper handling of memory access patterns when processing crafted HTML content, allowing remote attackers to potentially extract sensitive data from process memory through malicious web pages. The vulnerability is classified as low severity by Chromium security standards but demonstrates a concerning weakness in the browser's memory management and sandboxing mechanisms.
The technical implementation flaw occurs within Chrome's WebXR subsystem which handles virtual reality and augmented reality experiences through web APIs. When processing specially crafted HTML content, the vulnerable code fails to properly validate or sanitize memory access operations, creating potential information leakage pathways. This type of vulnerability typically falls under CWE-209, Information Exposure Through an Error Message, or more specifically CWE-215, Information Exposure Through Debug Information, depending on the exact memory access pattern. The issue manifests when the browser processes WebXR-related JavaScript APIs and encounters malformed input that triggers unexpected behavior in memory handling routines.
From an operational perspective, this vulnerability enables remote attackers to perform memory scraping attacks against Chrome browsers running affected versions. An attacker could construct a malicious webpage containing crafted WebXR API calls that trigger the information disclosure condition when loaded in a victim's browser. The sensitive information potentially accessible through this vector could include memory addresses, stack contents, or other process-specific data that might aid in more sophisticated attacks. This vulnerability aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter: JavaScript, and potentially T1566 for Phishing with Malicious Attachments or Links.
The impact of this vulnerability extends beyond simple information disclosure as it provides attackers with additional attack surface information that could be leveraged in subsequent exploitation attempts. While the immediate severity is classified as low, the potential for escalation exists particularly when combined with other vulnerabilities or when targeting specific memory layouts. Organizations should prioritize updating Chrome installations to version 151.0.7922.72 or later to mitigate this risk. The fix typically involves implementing proper memory access validation and sanitization within the WebXR processing pipeline, ensuring that all input is properly validated before being processed in memory-sensitive contexts.
Mitigation strategies should include immediate deployment of the patched Chrome version, along with monitoring for suspicious web activity patterns that might indicate exploitation attempts. Network administrators should consider implementing web filtering solutions to block access to known malicious domains that might host such exploit pages. Additionally, browser hardening configurations and regular security updates should be maintained to prevent similar vulnerabilities from being exploited in the future. The vulnerability serves as a reminder of the importance of memory safety in modern browser implementations and the need for comprehensive security testing of web APIs.