CVE-2026-20627
published 2026-02-11CVE-2026-20627: 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…
PriorityP424medium5.5CVSS 3.1
AVLACLPRNUIRSUCHINAN
EPSS
0.14%
3.8th percentile
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.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_26.3_and_ipados | — | — |
| apple | ios_and_ipados | < 26.3 | 26.3 |
| apple | ipados | < 26.3 | 26.3 |
| apple | iphone_os | < 26.3 | 26.3 |
| apple | macos | < 14.8.4 | 14.8.4 |
| apple | macos | < 15.7.4 | 15.7.4 |
| apple | macos | < 26.3 | 26.3 |
| apple | macos | >= 14.0 < 14.8.4 | 14.8.4 |
| apple | macos | >= 26.0 < 26.3 | 26.3 |
| apple | macos_sonoma | — | — |
| apple | macos_tahoe | — | — |
| apple | visionos | < 26.3 | 26.3 |
| apple | visionos | — | — |
| apple | watchos | < 26.3 | 26.3 |
| apple | watchos | — | — |
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Apple
CVE-2026-20627: iOS 26.3 and iPadOS 26.3
vendor_apple·2026-02-11·CVSS 5.5
CVE-2026-20627 [MEDIUM] CVE-2026-20627: iOS 26.3 and iPadOS 26.3
Apple Security Update: About the security content of iOS 26.3 and iPadOS 26.3
Product: iOS 26.3 and iPadOS
Version: 26.3
CVE: CVE-2026-20627
Component: CoreServices
Impact: An app may be able to access sensitive user data
Description: An issue existed in the handling of environment variables. This issue was addressed with improved validation.
Apple
CVE-2026-20627: macOS Sonoma 14.8.4
vendor_apple·2026-02-11·CVSS 5.5
CVE-2026-20627 [MEDIUM] CVE-2026-20627: macOS Sonoma 14.8.4
Apple Security Update: About the security content of macOS Sonoma 14.8.4
Product: macOS Sonoma
Version: 14.8.4
CVE: CVE-2026-20627
Component: CoreServices
Impact: An app may be able to access sensitive user data
Description: An issue existed in the handling of environment variables. This issue was addressed with improved validation.
Apple
CVE-2026-20627: macOS Tahoe 26.3
vendor_apple·2026-02-11·CVSS 5.5
CVE-2026-20627 [MEDIUM] CVE-2026-20627: macOS Tahoe 26.3
Apple Security Update: About the security content of macOS Tahoe 26.3
Product: macOS Tahoe
Version: 26.3
CVE: CVE-2026-20627
Component: CoreServices
Impact: An app may be able to access sensitive user data
Description: An issue existed in the handling of environment variables. This issue was addressed with improved validation.
Apple
CVE-2026-20627: watchOS 26.3
vendor_apple·2026-02-11·CVSS 5.5
CVE-2026-20627 [MEDIUM] CVE-2026-20627: watchOS 26.3
Apple Security Update: About the security content of watchOS 26.3
Product: watchOS
Version: 26.3
CVE: CVE-2026-20627
Component: CoreServices
Impact: An app may be able to access sensitive user data
Description: An issue existed in the handling of environment variables. This issue was addressed with improved validation.
Apple
CVE-2026-20627: visionOS 26.3
vendor_apple·2026-02-11·CVSS 5.5
CVE-2026-20627 [MEDIUM] CVE-2026-20627: visionOS 26.3
Apple Security Update: About the security content of visionOS 26.3
Product: visionOS
Version: 26.3
CVE: CVE-2026-20627
Component: CoreServices
Impact: An app may be able to access sensitive user data
Description: An issue existed in the handling of environment variables. This issue was addressed with improved validation.
VulDB
Apple macOS/watchOS/visionOS/iOS/iPadOS up to 26.2 Environment Variable information disclosure
vuldb·2026-08-22·CVSS 5.5
CVE-2026-20627 [MEDIUM] Apple macOS/watchOS/visionOS/iOS/iPadOS up to 26.2 Environment Variable information disclosure
A vulnerability labeled as problematic has been found in Apple macOS, watchOS, visionOS, iOS and iPadOS up to 26.2. This issue affects some unknown processing of the component Environment Variable Handler. Executing a manipulation can lead to information disclosure.
This vulnerability is tracked as CVE-2026-20627. The attack is restricted to local execution. No exploit exists.
The affected component should be upgraded.
GHSA
GHSA-rfq8-v234-58w4: An issue existed in the handling of environment variables
ghsa_unreviewed·2026-02-12
CVE-2026-20627 [MEDIUM] CWE-20 GHSA-rfq8-v234-58w4: An issue existed in the handling of environment variables
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.
No detection rules found.
No public exploits indexed.
2026-02-11
Published