CVE-2026-28880: Apple iPadOS Information Disclosure Flaw

CVE-2026-28880 Overview

A permissions issue in Apple operating systems allows malicious applications to enumerate a user's installed apps. This vulnerability, classified under CWE-284 (Improper Access Control), stems from insufficient restrictions in the permissions framework that governs inter-application visibility and system queries. Apple has addressed this vulnerability with additional restrictions in multiple security updates across iOS, iPadOS, macOS, and visionOS platforms.

Critical Impact
Malicious applications can enumerate installed apps on affected devices, potentially enabling targeted attacks, fingerprinting, or privacy violations by revealing user software preferences and installed security tools.

Affected Products

Apple iOS (versions prior to 18.7.7 and 26.4)
Apple iPadOS (versions prior to 18.7.7 and 26.4)
Apple macOS Sequoia (versions prior to 15.7.5), macOS Sonoma (versions prior to 14.8.5), and macOS Tahoe (versions prior to 26.4)
Apple visionOS (versions prior to 26.4)

Discovery Timeline

March 25, 2026 - CVE-2026-28880 published to NVD
March 25, 2026 - Last updated in NVD database

Technical Details for CVE-2026-28880

Vulnerability Analysis

This vulnerability represents an Improper Access Control (CWE-284) flaw within Apple's operating system permission framework. The issue allows applications to query and enumerate other installed applications on the device without proper authorization. In typical Apple security architecture, applications operate within sandboxed environments with restricted visibility into other installed software. This vulnerability bypasses those protections.

The attack can be executed over a network context with low complexity and requires no user interaction or special privileges. While the vulnerability does not allow direct code execution or complete system compromise, the information exposure creates significant privacy concerns and can serve as a reconnaissance mechanism for more sophisticated attack chains. An attacker could identify security applications, corporate MDM solutions, or specific high-value targets based on installed software profiles.

Root Cause

The root cause lies in insufficient permission restrictions governing inter-application queries and system-level APIs that expose information about installed applications. The underlying permission checks failed to adequately restrict which applications could access the list of installed software, allowing unprivileged applications to enumerate this sensitive information. Apple addressed this by implementing additional restrictions to the affected APIs and permission validation routines.

Attack Vector

The attack vector is network-based, requiring a malicious application to be installed on the target device. Once installed, the malicious app exploits the insufficient permission checks to query system APIs that reveal installed application information. This can be accomplished through:

A malicious app distributed through unofficial channels or social engineering
Legitimate app that has been compromised or contains hidden functionality
A seemingly benign application that collects this information for reconnaissance purposes

The enumeration results could reveal:

Security and privacy applications (indicating security-conscious users)
Banking and financial applications (identifying high-value targets)
Enterprise and corporate applications (identifying business users)
Development tools and utilities (fingerprinting technical users)

Detection Methods for CVE-2026-28880

Indicators of Compromise

Applications making unusual system queries to enumerate installed software
Unexpected network traffic containing application inventory data
Applications requesting or utilizing undocumented APIs related to application discovery
Suspicious app behavior patterns attempting to access protected system information

Detection Strategies

Monitor for applications making repeated or batch queries to application enumeration APIs
Implement endpoint detection rules to identify apps accessing system information outside their normal operational scope
Review application logs for unauthorized permission access attempts
Deploy behavioral analysis to detect reconnaissance-style information gathering

Monitoring Recommendations

Enable enhanced logging on iOS, iPadOS, macOS, and visionOS devices to capture permission violations
Implement Mobile Device Management (MDM) solutions to monitor application behavior across enterprise fleets
Utilize SentinelOne Singularity Platform for real-time behavioral monitoring on macOS endpoints
Review installed applications periodically for untrusted or suspicious software

How to Mitigate CVE-2026-28880

Immediate Actions Required

Update all Apple devices to the latest patched versions immediately
Remove any untrusted or suspicious applications from affected devices
Enable automatic updates on all Apple devices to receive security patches promptly
Review recently installed applications for potentially malicious software

Patch Information

Apple has released security updates addressing this vulnerability across all affected platforms. Organizations and users should update to the following versions or later:

iOS 18.7.7 or iOS 26.4
iPadOS 18.7.7 or iPadOS 26.4
macOS Sequoia 15.7.5
macOS Sonoma 14.8.5
macOS Tahoe 26.4
visionOS 26.4

Detailed patch information is available in the following Apple Security Advisories:

Workarounds

Restrict application installations to only App Store verified applications until patching is complete
Implement strict MDM policies to prevent installation of untrusted applications on enterprise devices
Isolate unpatched devices from sensitive network segments where possible
Review and revoke unnecessary application permissions on all Apple devices

bash

# macOS - Check current system version for patch verification
sw_vers -productVersion

# iOS/iPadOS - Verify version via Settings > General > About
# Update via Settings > General > Software Update

# For enterprise MDM environments, push mandatory updates using:
# Apple Business Manager or Apple School Manager update policies