Remote RCE in Google Chrome's V8 affects a widely used browser across enterprises; fix released and requires rapid org-wide updates.
CVE-2026-102321
Type-confusion RCE in V8 (Chrome <154.0.8037.92) via crafted HTML
Is CVE-2026-102321 being exploited?
Not confirmed. CVE-2026-102321 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-102321?
CVE-2026-102321 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-102321?
Yes. A fix has been recorded for CVE-2026-102321. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-102321 affect?
CVE-2026-102321 affects Google Chrome (Desktop) versions prior to 154.0.8037.92, Chromium-based browsers using same V8. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-102321?
Update Chrome to 154.0.8037.92+ immediately.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution in Chrome renderer via V8 type-confusion; attacker can execute arbitrary code in sandboxed renderer, risking user/session compromise.
Immediate action required
- affected< 154.0.8037.92
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.