CVSS 10.0 macOS sandbox-escape affecting widely deployed Apple desktops/laptops; enterprise-wide patching needed and will be high-profile.
CVE-2026-65381
Entitlement validation flaw allows macOS sandbox escape
Is CVE-2026-65381 being exploited?
Not confirmed. CVE-2026-65381 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-2026-65381?
CVE-2026-65381 is rated Critical with a CVSS score of 10.0. 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-2026-65381?
Yes. A fix has been recorded for CVE-2026-65381. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-65381 affect?
CVE-2026-65381 affects Apple macOS (Golden Gate), Apple macOS (Sequoia), Apple macOS (Tahoe). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-65381?
Install Apple updates immediately; block/quarantine untrusted apps until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Malicious app can bypass sandbox, execute outside confinement, escalate privileges and access system data.
Immediate action required
- affected< 15.8
- affected< 26.7
- affected< 27
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.