CVE-2026-64711 Overview
CVE-2026-64711 is an authorization vulnerability affecting Apple iOS, iPadOS, and macOS operating systems. The flaw stems from missing entitlement checks that allow a locally installed application to leak sensitive user information. Apple addressed the issue by introducing additional entitlement checks in iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. The weakness is classified as improper authorization [CWE-285] and requires local access with user interaction to exploit.
Critical Impact
A malicious app installed on a vulnerable Apple device can bypass authorization boundaries and access sensitive user information without triggering standard consent prompts.
Affected Products
- Apple iOS and iPadOS versions prior to 26.6
- Apple macOS Sonoma versions prior to 14.8.8 and macOS Sequoia versions prior to 15.7.8
- Apple macOS Tahoe versions prior to 26.6
Discovery Timeline
- 2026-07-27 - CVE-2026-64711 published to NVD
- 2026-07-28 - Last updated in NVD database
Technical Details for CVE-2026-64711
Vulnerability Analysis
The vulnerability originates from insufficient entitlement enforcement within an Apple operating system component shared across iOS, iPadOS, and macOS. Entitlements are cryptographically signed key-value pairs that grant applications specific rights to system resources. When entitlement checks are missing or incomplete, unprivileged applications can reach interfaces intended for privileged callers.
An application running under standard user permissions can invoke the affected code path and retrieve sensitive user information. The confidentiality impact is high, while integrity and availability remain unaffected. The vulnerability requires user interaction, typically meaning the victim must first install and launch the malicious application.
Apple resolved the issue by adding entitlement checks that validate the caller before returning sensitive data. This aligns with the standard Apple platform security model, where sensitive APIs require explicit entitlements granted only to authorized system processes or apps with user consent.
Root Cause
The root cause is improper authorization [CWE-285]. A component exposed to third-party applications did not verify that the caller possessed the required entitlement before returning user data. This design gap allowed sandboxed apps to obtain information that should have been restricted to system callers.
Attack Vector
Exploitation requires local access to the target device. An attacker must deliver a malicious application through the App Store, TestFlight, sideloading, or an enterprise distribution channel. Once the user launches the app, it can invoke the vulnerable API and exfiltrate the leaked data to an attacker-controlled endpoint. No elevated privileges are required prior to the leak.
No public proof-of-concept exploit is available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The current EPSS score is 0.122%.
Detection Methods for CVE-2026-64711
Indicators of Compromise
- Unsigned or non-App Store applications querying system frameworks that expose user data
- Outbound network connections from recently installed applications to unfamiliar domains shortly after launch
- Apps requesting or invoking APIs inconsistent with their declared functionality
Detection Strategies
- Inventory managed Apple devices and identify systems still running iOS, iPadOS, or macOS versions below the patched builds
- Review Mobile Device Management (MDM) telemetry for apps installed outside sanctioned distribution channels
- Correlate application launch events with anomalous outbound traffic patterns using endpoint and network telemetry
Monitoring Recommendations
- Ingest macOS Unified Log data and MDM compliance events into a centralized analytics platform for continuous review
- Alert when devices report OS versions below the patched builds listed in the Apple advisories
- Track newly installed applications on managed endpoints and flag those requesting sensitive entitlements
How to Mitigate CVE-2026-64711
Immediate Actions Required
- Update all managed Apple devices to iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6
- Enforce OS version compliance policies through MDM and quarantine non-compliant devices from sensitive resources
- Audit installed applications and remove untrusted or unnecessary third-party software
Patch Information
Apple published fixes in the following advisories: Apple Security Advisory #128066, Apple Security Advisory #128067, Apple Security Advisory #128071, and Apple Security Advisory #128072. Administrators should deploy the corresponding OS updates across all managed endpoints.
Workarounds
- Restrict application installation to the App Store and vetted enterprise sources through MDM configuration profiles
- Disable sideloading and developer mode on production devices where feasible
- Educate users to avoid installing untrusted applications until patches are deployed
# Verify current OS build on macOS endpoints
sw_vers -productVersion
# Trigger a software update check via command line
sudo softwareupdate --list
sudo softwareupdate --install --all --restart
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
