Widely used Chrome browser; sandbox-escape risk could disrupt enterprise endpoints.
CVE-2026-11655
Chrome for macOS sandbox escape via renderer overflow
Is CVE-2026-11655 being exploited?
Not confirmed. CVE-2026-11655 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 0.24% probability of exploitation in the next 30 days.
How severe is CVE-2026-11655?
CVE-2026-11655 is rated High with a CVSS score of 8.3. 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-2026-11655?
Yes. A fix has been recorded for CVE-2026-11655. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-11655 affect?
CVE-2026-11655 affects Google Chrome for macOS (pre-149.0.7827.103). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-11655?
Update to Chrome 149.0.7827.103 or newer
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Sandbox escape via compromised Chrome renderer could allow remote code execution on macOS.
Immediate action required
- affected< 149.0.7827.103
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.