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cve 2026 5859

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CVE-2026-5859 is a critical Chromium vulnerability involving an integer overflow in WebML that leads to heap corruption. The flaw affects Google Chrome versions prior to 147.0.7727.55 and also impacts Microsoft Edge, as both browsers share the Chromium engine. A remote attacker could exploit this issue by crafting a malicious HTML page, potentially causing heap corruption. Security teams are advised to treat this as an urgent patch item. Microsoft has acknowledged the vulnerability in its Security Update Guide, highlighting the downstream risk for enterprise environments relying on Chromium-based browsers.
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    CVE-2026-5859: Critical WebML Integer Overflow Threat to Chrome and Edge

    A newly published Chromium flaw, CVE-2026-5859, is the kind of browser vulnerability that security teams should treat as an urgent patch item rather than an abstract identifier. Google says the issue is an integer overflow in WebML affecting Chrome versions prior to 147.0.7727.55, and that a...
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    • browser security chromium webml cve 2026 5859 windows patching
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    • Forum: Security Alerts
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