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cross-origin data leak

About this tag
The cross-origin data leak tag on WindowsForum covers Chromium vulnerabilities that allow an attacker who has already compromised the renderer process to leak data from another origin through a crafted HTML page. These flaws are typically rated medium or low severity but are significant because they break the browser's origin isolation promise. Topics include CVE-2026-11691 (Chrome New Tab Page), CVE-2026-11007 (WebView), CVE-2026-11145 (geolocation race), CVE-2026-7942 (ANGLE integer overflow), CVE-2026-8011 (Search policy enforcement), and CVE-2025-5064 (Background Fetch API). For Windows users and administrators, these vulnerabilities highlight the importance of prompt patching and treating Chromium security as part of the operating environment.
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    CVE-2026-14022: Medium Chrome Network Bug Could Leak Cross-Origin Data (Windows Patch)

    Google documented CVE-2026-14022 on June 30, 2026, as a medium-severity Chrome Network vulnerability fixed before version 150.0.7871.47 that could let an attacker with a compromised renderer process leak cross-origin data through a crafted HTML page. The National Vulnerability Database entry...
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    • chrome cve cross-origin data leak network vulnerability windows patching
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    • Forum: Security Alerts
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    CVE-2026-14098: Chrome CSS Bug Leaks Cross-Origin Data—Update to 150.0.7871.47

    Google Chrome before version 150.0.7871.47 contained a CSS implementation flaw, CVE-2026-14098, disclosed on June 30, 2026, that could let a remote attacker leak cross-origin data through a crafted HTML page on affected desktop platforms. The bug is officially rated “Low” by Chromium, but CISA’s...
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    • browser security cross-origin data leak cve-2026-14098 google chrome
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    • Forum: Security Alerts
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    Chrome CVE-2026-14100: Low-Severity NetworkCache Flaw Enables Cross-Origin Data Leaks

    Google fixed CVE-2026-14100 in Chrome 150.0.7871.47 after disclosing on June 30, 2026 that insufficient data validation in Chromium’s NetworkCache could let a remote attacker leak cross-origin data through a crafted HTML page. The bug is not a headline-grabbing memory-corruption zero-day, and...
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    • chrome security cross-origin data leak cve-2026-14100 networkcache
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    • Forum: Security Alerts
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    CVE-2026-14082: Chrome 150 Storage Race Leaks Cross-Origin Data—Patch Now

    CVE-2026-14082 is a low-severity Chromium Storage race condition fixed in Google Chrome 150.0.7871.47 for Windows and Mac and 150.0.7871.46 for Linux, disclosed June 30, 2026, that could let a remote attacker leak cross-origin data through a crafted HTML page. The headline looks modest; the...
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    • browser patch management cross-origin data leak cve-2026-14082 google chrome security
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    • Forum: Security Alerts
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    Chrome CVE-2026-13937: Passwords Boundary Bug Causes Cross-Origin Data Leak Risk

    Google Chrome versions before 150.0.7871.47 contain CVE-2026-13937, a medium-severity Passwords component flaw disclosed June 30, 2026, that can let a remote attacker leak cross-origin data after first compromising Chrome’s renderer process. The vulnerability is not the clean, one-click password...
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    • chrome vulnerability cross-origin data leak enterprise patching passwords security
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    • Forum: Security Alerts
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    CVE-2026-11691 Chrome New Tab Page Fix: Cross-Origin Leak After Renderer Compromise

    CVE-2026-11691 is a high-severity Chromium vulnerability disclosed in June 2026 in Google Chrome’s New Tab Page, fixed before version 149.0.7827.103, that could let an attacker who had already compromised the renderer leak cross-origin data through a crafted HTML page. The awkward phrasing...
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    • chrome security cross-origin data leak cve-2026-11691 windows patch management
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    • Forum: Security Alerts
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    CVE-2026-11007 Chrome WebView Bug: Cross-Origin Data Leak & Patch Guidance

    CVE-2026-11007 is a medium-severity Chrome for Android WebView vulnerability, published June 4, 2026 and modified June 8, that affected versions before 149.0.7827.53 and could let a remote attacker leak cross-origin data after compromising the renderer process. The uncomfortable part is not the...
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    • chrome android cross-origin data leak cve patching webview security
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    • Forum: Security Alerts
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    CVE-2026-11145: Chrome Android Geolocation Race Causing Cross-Origin Data Leaks

    CVE-2026-11145 is a medium-severity Chrome for Android vulnerability, published by NVD on June 4, 2026 and last modified on June 8, that affects Google Chrome before version 149.0.7827.53 and can allow cross-origin data leakage through a crafted HTML page. The bug is not the sort of...
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    • browser patch management chrome android cross-origin data leak vulnerability management
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    • Forum: Security Alerts
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    CVE-2026-7942 ANGLE Integer Overflow: Cross-Origin Data Leak & Chrome 148 Fix

    Google disclosed CVE-2026-7942 on May 6, 2026, as a medium-severity integer overflow in ANGLE affecting Chrome before version 148.0.7778.96, allowing a remote attacker to leak cross-origin data through a crafted HTML page. The bug is not the kind of headline-grabbing browser flaw that screams...
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    • angle vulnerability chrome 148 security update cross-origin data leak cve 2026 7942
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    • Forum: Security Alerts
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    CVE-2026-8011 Low-Severity Chrome Leak: Windows Patch Guidance

    CVE-2026-8011 is a low-severity Chromium vulnerability disclosed on May 6, 2026, affecting Google Chrome before version 148.0.7778.96, where insufficient policy enforcement in Search could let a remote attacker leak cross-origin data through a crafted HTML page. The bug is not the sort of...
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    • chrome security cross-origin data leak cve 2026-8011 windows admin
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    • Forum: Security Alerts
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    Understanding CVE-2025-5064: Background Fetch API Security Vulnerabilities in Chromium Browsers

    The Background Fetch API in Chromium-based browsers has been a focal point for security vulnerabilities, with multiple instances of inappropriate implementations leading to cross-origin data leaks. The most recent of these is identified as CVE-2025-5064, which underscores the ongoing challenges...
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    • api security background fetch api background processes browser security browser updates chrome vulnerability chromium vulnerability cross-origin data leak cross-origin requests cross-platform security cve-2025-5064 cybersecurity developer security microsoft edge privacy risks security advisory security best practices security updates vulnerability web security
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    • Forum: Security Alerts
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