Affects Google Chrome on Windows with sandbox escape risk; highly impactful and widely used.
CVE-2026-11056
Chrome Windows sandbox escape via crafted HTML in compromised renderer.
Is CVE-2026-11056 being exploited?
Not confirmed. CVE-2026-11056 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 0.23% probability of exploitation in the next 30 days.
How severe is CVE-2026-11056?
CVE-2026-11056 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-2026-11056?
Yes. A fix has been recorded for CVE-2026-11056. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-11056 affect?
CVE-2026-11056 affects Google Chrome for Windows, Chromium-based Chrome browsers (Windows). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-11056?
Update to 149.0.7827.53+; enable auto-update.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker with compromised renderer can escape Chrome sandbox and run arbitrary code on Windows.
Immediate action required
- affected< 149.0.7827.53
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.