Remote code execution in Google Chrome on Android, a widely deployed browser affecting large user bases and corporate mobile fleets; urgent, high-impact fix required.
CVE-2026-118321
Chrome for Android RCE via crafted HTML (pre-156.0.8078.73)
Is CVE-2026-118321 being exploited?
Not confirmed. CVE-2026-118321 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-2026-118321?
CVE-2026-118321 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-2026-118321?
Yes. A fix has been recorded for CVE-2026-118321. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-118321 affect?
CVE-2026-118321 affects Google Chrome for Android <156.0.8078.73. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-118321?
Update Chrome for Android to 156.0.8078.73+ immediately and restrict untrusted content.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution outside the Chrome sandbox via a crafted HTML page, enabling arbitrary code execution on affected Android devices.
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.