critical9.1
CVE-2026-86881
A certificate validation issue was addressed with improved certificate validation.
Impact
A certificate validation issue was addressed with improved certificate validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An attacker with a compromised intermediate certificate authority may be able to issue certificates with arbitrary extended key usages.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apple | Ipados | before 26.7 |
| Apple | Iphone Os | before 26.7 |
| Apple | Macos | from 15.0 before 15.8 from 26.0 before 26.7 |
| Apple | Tvos | before 27.0 |
| Apple | Visionos | before 27.0 |
| Apple | Watchos | before 27.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://support.apple.com/en-us/149034
- https://support.apple.com/en-us/149035
- https://support.apple.com/en-us/149036
- https://support.apple.com/en-us/149037
- https://support.apple.com/en-us/149038
- https://support.apple.com/en-us/149041
- https://support.apple.com/en-us/149042
- https://support.apple.com/en-us/149043