CVE-2026-20686

MEDIUM

iOS and iPadOS < 26.3 - Unprotected User Data Exposure via Input Validation Issue

Title source: llm

Description

This issue was addressed with improved input validation. This issue is fixed in iOS 26.3 and iPadOS 26.3. An app may be able to access sensitive user data.

References (1)

Core 1

Core References

https://support.apple.com/en-us/126346

Scores

CVSS v3 5.3

EPSS 0.0019

EPSS Percentile 9.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-20

Status published

Products (3)

Apple/iOS and iPadOS < 26.3

apple/ipados < 26.3

apple/iphone_os < 26.3

Published Mar 25, 2026

Tracked Since Mar 25, 2026