> Chromium CVE-2026-87491: Out of bounds write in V8

[SOURCE] Microsoft Security Update Guide [DATE: 12/09/2026 04:56] [LANGUAGE: EN]

This CVE was assigned by Chrome.  Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see [Google Chrome Releases](https://chromereleases.googleblog.com/2026) for more information. Google is aware that an exploit for CVE-2026-87491 exists in the wild.

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