Google disclosed two high-severity Chrome vulnerabilities that could be triggered when a user visits a crafted HTML page, affecting the browser's WebCodecs and V8 components. CVE-2026-5292 is an out-of-bounds read in WebCodecs, tracked as CWE-125, and impacts Chrome versions prior to 146.0.7680.178. The flaw carries a CVSS v3.1 vector of AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating remote exploitation with user interaction and potentially high impact to confidentiality, integrity, and availability.
Google also recorded CVE-2026-6363, a type confusion issue in V8 tracked as CWE-843, affecting Chrome versions prior to 147.0.7727.101. Chrome rated the V8 bug with Medium Chromium security severity, but the published CVSS v3.1 vector likewise reflects potentially high impact if exploited through malicious web content. Both vulnerabilities were documented in Chrome release materials and Chromium issue tracker entries, underscoring the need for organizations to update Chrome promptly to the patched versions.

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Later the same day, the CVE-2026-6363 record was modified to add a CVSS v3.1 vector indicating high potential impact and references to the Chrome Releases blog and Chromium issue tracker. Chrome classified the underlying Chromium issue with Medium security severity.
Google newly recorded CVE-2026-6363, a type confusion vulnerability in Chrome's V8 engine affecting versions prior to 147.0.7727.101. The issue could allow a remote attacker to trigger out-of-bounds memory access through a crafted HTML page.
Google received and recorded CVE-2026-5292 for an out-of-bounds read vulnerability in Chrome's WebCodecs component. The flaw affects Chrome versions prior to 146.0.7680.178 and can be triggered by a remote attacker via a crafted HTML page.
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