CVE-2026-20686

CWE-20 — Improper Input Validation4 documents4 sources
Severity
5.3MEDIUM
EPSS
0.1%
top 73.96%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Apple IOS AND IpadosApple IpadosApple Iphone OS
Timeline
PublishedMar 25

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages3 packages

▶NVDapple/ipados< 26.3
▶CVEListV5apple/ios_and_ipados< 26.3
▶NVDapple/iphone_os< 26.3

🔴Vulnerability Details

2
GHSA
GHSA-qqh3-3q88-f879: This issue was addressed with improved input validation↗2026-03-25
▶
CVEList
CVE-2026-20686: This issue was addressed with improved input validation↗2026-03-25
▶

📋Vendor Advisories

1
Apple
CVE-2026-20686: iOS 26.3 and iPadOS 26.3↗2026-02-11
▶
CVE-2026-20686 (MEDIUM CVSS 5.3) | This issue was addressed with impro | cvebase.io