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iOS CVE-2026-43797

| EUVDEUVD-2026-49607 MEDIUM
Information Exposure (CWE-200)
2026-07-27 apple GHSA-qmfh-v5vm-w2qv
5.5
CVSS 3.1 · Vendor: apple
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Severity by source

Vendor (apple) PRIMARY
5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
vuln.today AI
5.5 MEDIUM

Requires local app execution and user interaction, so AV:L and UI:R; no privileges needed, so PR:N.

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:N/UI:R/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

5
Analysis Generated
Jul 28, 2026 - 17:25 vuln.today
CVSS changed
Jul 28, 2026 - 17:22 NVD
5.5 (MEDIUM)
Patch available
Jul 27, 2026 - 21:17 EUVD
CVE Published
Jul 27, 2026 - 20:11 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 27, 2026 - 20:11 cve.org
MEDIUM 5.5

DescriptionCVE.org

This issue was addressed with improved checks. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6. An app may be able to access information about a user's contacts.

AnalysisAI

Information disclosure in Apple iOS, iPadOS, and macOS Tahoe allows a malicious app with local access to read a user's contacts database. The flaw is fixed in iOS 26.6, iPadOS 26.6, and macOS Tahoe 26.6. No public exploit or active exploitation has been reported, and the EPSS score (0.15%) indicates low exploitation likelihood.

Technical ContextAI

The vulnerability resides in the contacts database access controls on Apple operating systems (iOS, iPadOS, macOS Tahoe). Classified as CWE-200 (Exposure of Sensitive Information), the root cause is improper validation of app-level access to the user's address book. Affected versions include iOS and iPadOS versions prior to 26.6 and macOS Tahoe versions prior to 26.6, as indicated by the CPE strings cpe:2.3:a:apple:ios_and_ipados and cpe:2.3:a:apple:macos. The attack surface is local, requiring an app to execute on the device.

RemediationAI

Update to the patched versions: iOS 26.6, iPadOS 26.6, or macOS Tahoe 26.6. No workarounds are available; the primary mitigation is to install the vendor-released updates. Adhere to best practices by only installing trusted apps from the official App Store. Advisory links: https://support.apple.com/en-us/128066 (iOS/iPadOS) and https://support.apple.com/en-us/128067 (macOS).

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CVE-2026-43797 vulnerability details – vuln.today

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