CVE-2026-86961

7.8High

Published 20 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash

7.8High

Attack vector: Local
Complexity: High
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-362

Impact

A local malicious app can break out of its sandbox and compromise the host system. The attacker needs existing local code execution on the device to trigger it.

Root cause

A race condition allowed sandbox escape due to insufficient validation.

Affected systems

Apple iOS, iPadOS, and macOS versions prior to iOS 27, iPadOS 27, and macOS Golden Gate 27.

CVSS v3.1 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Fix & remediation

Upgrade devices to iOS 27, iPadOS 27, or macOS Golden Gate 27. No interim workaround is documented, so restrict untrusted application installation until updated.

shell

$ softwareupdate -ia

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

A race condition was addressed with additional validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27. A malicious app may be able to break out of its sandbox.

References

Source: nvd.nist.gov/vuln/detail/CVE-2026-86961