CVE-2026-64743 Overview
CVE-2026-64743 is an authorization vulnerability affecting multiple Apple operating systems. The flaw stems from improper state management within an authorization check, allowing an application to access sensitive user data outside its intended scope. Apple addressed the issue with improved state management in iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. The vulnerability maps to [CWE-285: Improper Authorization] and requires user interaction to exploit. No public proof-of-concept is available, and the issue is not listed on the CISA Known Exploited Vulnerabilities catalog.
Critical Impact
A malicious application can bypass authorization state checks and access sensitive user data across Apple's operating system portfolio.
Affected Products
- Apple iOS and iPadOS (fixed in 26.6)
- Apple macOS Tahoe (fixed in 26.6) and tvOS (fixed in 26.6)
- Apple visionOS and watchOS (fixed in 26.6)
Discovery Timeline
- 2026-07-27 - CVE-2026-64743 published to NVD
- 2026-07-29 - Last updated in NVD database
Technical Details for CVE-2026-64743
Vulnerability Analysis
The vulnerability is an authorization flaw rooted in improper state management. Apple's advisories describe the resolution as "an authorization issue was addressed with improved state management," indicating the affected component failed to correctly track authorization state across operations. An application on the device could reach an execution path where the authorization decision no longer reflected the current user context or entitlement state.
The resulting condition allowed the app to read sensitive user data that should have been gated behind an authorization prompt or entitlement check. The Common Weakness Enumeration classification is [CWE-285: Improper Authorization]. The scope is limited to confidentiality; integrity and availability of the system are not affected according to the published CVSS vector. EPSS data lists the exploit probability as low, and no exploit is publicly available at time of writing.
Root Cause
Apple has not published low-level component details for CVE-2026-64743. The advisory attributes the defect to state management within an authorization pathway. Improper state tracking typically arises when a privileged operation caches an authorization decision, when a state transition is not atomically validated, or when a check-then-use pattern permits stale state to satisfy an access decision.
Attack Vector
Exploitation requires a locally installed application and user interaction, per the CVSS vector. A network attack vector is listed because the malicious app could be delivered through network-reachable distribution channels, but exploitation itself is performed by the app on the device. Once invoked, the app leverages the flawed authorization state to read sensitive user data without the expected authorization gate.
No verified exploit code is available. See the Apple security advisories linked in the references for vendor-provided technical context.
Detection Methods for CVE-2026-64743
Indicators of Compromise
- No public indicators of compromise have been published for CVE-2026-64743.
- Apple has not disclosed in-the-wild exploitation, and the CVE is not on the CISA KEV list.
Detection Strategies
- Inventory Apple endpoints and identify devices running OS versions prior to iOS/iPadOS/macOS Tahoe/tvOS/visionOS/watchOS 26.6.
- Review installed third-party applications on managed Apple devices for unexpected access to sensitive data classes such as contacts, photos, or location.
- Correlate MDM compliance signals with security telemetry to identify devices lagging behind on the 26.6 update train.
Monitoring Recommendations
- Alert on Apple devices that fail to check in with the 26.6 patch baseline within your defined SLA window.
- Monitor application install and entitlement events on managed macOS endpoints for apps requesting elevated data access.
- Track Apple's advisory pages (128066, 128067, 128068, 128069, 128070) for updated exploitation status.
How to Mitigate CVE-2026-64743
Immediate Actions Required
- Update all affected Apple devices to iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6 or later.
- Enforce the patched baseline through your MDM policy and block non-compliant devices from accessing sensitive corporate resources.
- Audit installed applications on managed endpoints and remove untrusted or unnecessary apps that request access to sensitive user data.
Patch Information
Apple released fixes across its operating system portfolio on the versions listed above. Refer to the vendor advisories for exact build numbers and applicability per hardware model: Apple Security Advisory 128066, Apple Security Advisory 128067, Apple Security Advisory 128068, Apple Security Advisory 128069, and Apple Security Advisory 128070.
Workarounds
- No vendor-supplied workaround exists. Applying the 26.6 update is the only supported remediation.
- Restrict installation of unvetted applications through MDM configuration profiles and App Store review policies until patching completes.
- Educate users to decline authorization prompts from untrusted applications, since exploitation requires user interaction.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
