Browser V8 RCE in Google Chrome is widely used and enables remote code execution from web content; affects large user base and warrants org-wide notification.
CVE-2026-118320
V8 memory corruption in Chrome allows sandboxed remote code execution via crafted web page.
Is CVE-2026-118320 being exploited?
Not confirmed. CVE-2026-118320 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-2026-118320?
CVE-2026-118320 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-2026-118320?
Yes. A fix has been recorded for CVE-2026-118320. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-118320 affect?
CVE-2026-118320 affects Google Chrome <156.0.8078.73 (desktop), Chromium-based browsers (likely). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-118320?
Update Chrome to 156.0.8078.73 or later immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution in Chrome's V8 engine via a crafted HTML page, allowing attacker-controlled code to run inside the browser sandbox.
Immediate action required
- affected< 156.0.8078.73
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.