CVE-2026-86921

Severity: medium (CVSS 6.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-20 · updated 2026-10-26
Weakness: CWE-269

Description

A permissions issue was addressed with improved validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. A local attacker may be able to overwrite restricted files.

Affected products

Apple iOS and iPadOS: before 26.7; before 27 — fixed in 26.7, 27
Apple macOS: before 27 — fixed in 27
Apple visionOS: before 27 — fixed in 27

How to fix

Upgrade to a fixed version: Apple iOS and iPadOS 26.7, 27; Apple macOS 27; Apple visionOS 27. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/149034
https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149038
https://support.apple.com/en-us/149041

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