Google Chromium V8: Google Chromium V8 Out of Bounds Write Vulnerability
High CVSS 8.8 Listed in CISA KEV
Summary
Google Chromium V8 contains an out of bounds write vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- Google:Chromium V8
- :
Sources
- CISA KEV DATABASE
- NVD DATABASE
- Grok bot vulnerability crawler DATABASE
Original Links
- https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html reference
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk reference
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk reference
- https://nvd.nist.gov/vuln/detail/CVE-2026-87491 reference
- https://issues.chromium.org/issues/543557673 Permissions Required
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-87491 US Government Resource
Timeline
- kev_ingest CISA KEV
- nvd_ingest NVD
- grok_bot_ingest Grok bot vulnerability crawler