CVE-2022-1498 in Chrome
Summary
by MITRE • 07/27/2022
Inappropriate implementation in HTML Parser in Google Chrome prior to 101.0.4951.41 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
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Analysis
by VulDB Data Team • 06/29/2026
This vulnerability represents a critical cross-origin data leakage issue within the HTML parser component of Google Chrome browsers running versions prior to 101.0.4951.41. The flaw stems from an inadequate implementation approach that fails to properly enforce cross-origin restrictions during HTML document parsing operations. Attackers could craft malicious HTML pages designed to exploit this weakness and extract sensitive data from different origins, effectively bypassing the browser's same-origin policy protections that are fundamental to web security architecture.
The technical mechanism behind this vulnerability involves improper handling of cross-origin resources during the HTML parsing phase where the parser fails to adequately validate or sanitize resource references originating from different domains. This allows malicious actors to construct HTML content that when processed by the vulnerable browser, triggers unintended data leakage behavior. The vulnerability specifically affects the HTML parser's ability to distinguish between legitimate cross-origin requests and malicious attempts to harvest information from other origins, creating an attack surface that violates core web security principles.
The operational impact of this vulnerability extends beyond simple information disclosure as it enables sophisticated cross-site data theft attacks that could compromise user privacy and sensitive information. An attacker could craft pages that silently extract cookies, local storage data, or other cross-origin resources without user consent or awareness. This represents a significant threat to web application security since the same-origin policy is one of the fundamental pillars protecting web applications from unauthorized data access. The vulnerability particularly impacts users of older Chrome versions who have not yet received the security updates that address this specific parsing implementation flaw.
Security mitigations for this vulnerability require immediate browser updates to version 101.0.4951.41 or later where Google has implemented corrected HTML parsing logic that properly enforces cross-origin restrictions. Organizations should also implement network-level monitoring to detect unusual cross-origin data access patterns and ensure comprehensive patch management processes are in place. The fix addresses the underlying CWE-20 implementation weakness related to improper input validation and strengthens the browser's defense mechanisms against cross-origin information leakage attacks that align with tactics described in the ATT&CK framework under data exfiltration techniques.
This vulnerability demonstrates the critical importance of proper HTML parser implementation in maintaining web security boundaries and highlights how seemingly minor parsing flaws can create significant security risks. The remediation approach focuses on strengthening the validation mechanisms within the browser's core parsing engine to ensure that cross-origin resource access is properly controlled and restricted according to established security protocols.