CVE-2026-20627 — Improper Input Validation in Apple IOS AND Ipados

CWE-20 — Improper Input Validation9 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 92.34%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Apple IOS AND IpadosApple MacosApple Visionos+3 more
Timeline
PublishedFeb 11
Latest updateFeb 12

Description

An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3, watchOS 26.3. An app may be able to access sensitive user data.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages9 packages

▶CVEListV5apple/macos< 14.8.4+1
▶NVDapple/macos14.0 — 14.8.4+1
▶NVDapple/ipados< 26.3
▶CVEListV5apple/watchos< 26.3
▶NVDapple/watchos< 26.3

🔴Vulnerability Details

2
GHSA
GHSA-rfq8-v234-58w4: An issue existed in the handling of environment variables↗2026-02-12
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CVEList
CVE-2026-20627: An issue existed in the handling of environment variables↗2026-02-11
▶

📋Vendor Advisories

5
Apple
CVE-2026-20627: iOS 26.3 and iPadOS 26.3↗2026-02-11
▶
Apple
CVE-2026-20627: macOS Sonoma 14.8.4↗2026-02-11
▶
Apple
CVE-2026-20627: macOS Tahoe 26.3↗2026-02-11
▶
Apple
CVE-2026-20627: watchOS 26.3↗2026-02-11
▶
Apple
CVE-2026-20627: visionOS 26.3↗2026-02-11
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20627 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-20627 — Improper Input Validation in Apple | cvebase