CVE-2026-20627CWE-20

CVE-2026-20627

Medium · published February 12, 2026

CVSS v3.1

5.5

EPSS

Percentile

6.0

In the wild

Unconfirmed

What it is

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 Sequoia 15.7.4, 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.

The record

Technical detail

CVSS v3.1: 5.5 · MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0: Not supplied
EPSS: 0.00169 · 6.0th percentile
Weakness: CWE-20 · Improper Input Validation
Published: 2026-02-12T04:16Z

Affected products (6)

Product	Versions	Fixed in
apple/ipados	< 26.3	26.3
apple/iphone_os	< 26.3	26.3
apple/macos	≥ 14.0, < 14.8.4	14.8.4
apple/macos	≥ 26.0, < 26.3	26.3
apple/visionos	< 26.3	26.3
apple/watchos	< 26.3	26.3

References (6)

https://support.apple.com/en-us/126346 · [email protected]https://support.apple.com/en-us/126348 · [email protected]https://support.apple.com/en-us/126349 · [email protected]https://support.apple.com/en-us/126350 · [email protected]https://support.apple.com/en-us/126352 · [email protected]https://support.apple.com/en-us/126353 · [email protected]

EPSS history

Timeline

11 FEB 22:58Z
An issue existed in the handling of environment variables
cvelistv5