CVE-2026-20627

EUVD-2026-6202
An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in watchOS 26.3, macOS Tahoe 26.3, macOS Sonoma 14.8.4, visionOS 26.3, iOS 26.3 and iPadOS 26.3. An app may be able to access sensitive user data.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CISA-ADPADP
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 6%
Affected Products (NVD)
VendorProductVersion
appleipados
𝑥
< 26.3
appleiphone_os
𝑥
< 26.3
applemacos
14.0 ≤
𝑥
< 14.8.4
applemacos
26.0 ≤
𝑥
< 26.3
applevisionos
𝑥
< 26.3
applewatchos
𝑥
< 26.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://support.apple.com/en-us/126346
https://support.apple.com/en-us/126348
https://support.apple.com/en-us/126350
https://support.apple.com/en-us/126352
https://support.apple.com/en-us/126353