RCE in a widely used browser (Google Chrome) that can lead to full host compromise via crafted extension; affects broad user base and warrants org-wide attention.
CVE-2026-106234
Use-after-free in Chrome enabling remote code execution via crafted extension.
Is CVE-2026-106234 being exploited?
Not confirmed. CVE-2026-106234 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. EPSS currently estimates a 0.28% probability of exploitation in the next 30 days.
How severe is CVE-2026-106234?
CVE-2026-106234 is rated Critical with a CVSS score of 9.6. 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-2026-106234?
Yes. A fix has been recorded for CVE-2026-106234. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-106234 affect?
CVE-2026-106234 affects Google Chrome <155.0.8059.39 (Windows), Google Chrome <155.0.8059.39 (macOS), Google Chrome <155.0.8059.39 (Linux). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-106234?
Update Chrome to 155.0.8059.39+ and remove/uninstall untrusted extensions.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution outside Chrome sandbox via a crafted extension after social engineering; potential full system compromise.
Immediate action required
- affected< 155.0.8059.39
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.