CVE-2026-20686
Improved Input Validation Fixes Sensitive Data Exposure in iOS
Publication date: 2026-03-25
Last updated on: 2026-03-25
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | ipados | to 26.3 (exc) |
| apple | iphone_os | to 26.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves insufficient input validation in certain Apple operating systems. Because of this flaw, an application may be able to access sensitive user data without proper authorization.
How can this vulnerability impact me? :
The impact of this vulnerability is that an app could potentially access sensitive user data, which could lead to privacy breaches or unauthorized data exposure.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update your devices to iOS 26.3 or iPadOS 26.3 or later, as the issue has been fixed in these versions through improved input validation.