CVE-2026-65404: Apple iPadOS Authorization Bypass Vulnerability

CVE-2026-65404 Overview

CVE-2026-65404 is an authorization vulnerability affecting Apple iOS, iPadOS, and macOS operating systems. The flaw allows a malicious application to bypass Privacy preferences on affected devices. Apple addressed the issue through improved state management in the underlying authorization logic. The vulnerability is categorized under [CWE-863: Incorrect Authorization] and requires local access with user interaction for exploitation. Successful exploitation compromises the integrity of privacy controls that gate application access to sensitive resources and user data.

Critical Impact
A malicious application installed on an affected Apple device can bypass Privacy preferences, potentially accessing resources that the user has not explicitly authorized.

Affected Products

Apple iOS and iPadOS prior to 18.7.10 and prior to iOS 27 / iPadOS 27
Apple macOS Sequoia prior to 15.7.8 and macOS Sonoma prior to 14.8.8
Apple macOS Golden Gate prior to 27

Discovery Timeline

2026-09-14 - CVE-2026-65404 published to NVD
2026-09-16 - Last updated in NVD database

Technical Details for CVE-2026-65404

Vulnerability Analysis

CVE-2026-65404 stems from an authorization flaw within Apple's Privacy preferences subsystem. The Privacy framework, known as Transparency, Consent, and Control (TCC) on macOS, mediates application access to sensitive resources such as the camera, microphone, contacts, photos, and file system locations. Improper state management within this authorization layer allowed a malicious application to reach protected resources without the user having granted consent through the Privacy preferences interface.

The issue is local in nature and requires user interaction, typically the installation and execution of a malicious application. While the vulnerability does not permit remote exploitation, it undermines a core trust boundary on Apple platforms. Apple resolved the flaw by improving state tracking within the authorization routine so consent checks are correctly evaluated across state transitions.

Root Cause

The root cause is inconsistent state tracking within the authorization path that governs Privacy preferences. When the subsystem transitioned between authorization states, existing consent decisions could be misinterpreted or bypassed. This class of defect maps to [CWE-863: Incorrect Authorization], where authorization checks execute but produce an incorrect decision.

Attack Vector

An attacker must first place a malicious application on the target device and induce a user to launch it. Once running, the application exploits the state management flaw to invoke privacy-gated APIs without triggering the expected consent prompt or without holding a valid consent grant. The impact is limited to integrity of privacy controls; the vulnerability does not directly disclose data or crash the system, but it enables unauthorized access to resources normally protected by user consent.

No public proof-of-concept code is available for CVE-2026-65404. Refer to the Apple security advisories listed under vendor resources for authoritative technical detail.

Detection Methods for CVE-2026-65404

Indicators of Compromise

Applications accessing Privacy-protected resources such as camera, microphone, contacts, or location without a corresponding user consent event in system logs.
Unexpected entries or modifications in the macOS TCC database (/Library/Application Support/com.apple.TCC/TCC.db and the per-user equivalent) that do not correlate with user consent dialogs.
Newly installed or recently updated third-party applications immediately followed by anomalous access to sensitive APIs.

Detection Strategies

Monitor endpoint telemetry for process execution events tied to unsigned or newly installed applications that subsequently invoke privacy-gated APIs.
Compare TCC decision events against interactive user consent events; a mismatch indicates authorization was granted outside the normal consent flow.
Track application code signatures and entitlements to identify applications requesting Privacy access without declaring the corresponding usage description keys.

Monitoring Recommendations

Ingest unified log data from macOS endpoints, filtering for the tccd subsystem to observe authorization decisions.
Alert on installation of applications from outside the App Store or unnotarized sources on managed fleets.
Baseline expected Privacy access patterns per application and flag deviations for review.

How to Mitigate CVE-2026-65404

Immediate Actions Required

Update affected devices to iOS 18.7.10, iPadOS 18.7.10, iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.7.8, or macOS Sonoma 14.8.8.
Audit installed third-party applications on managed endpoints and remove any that are unnecessary or of unknown provenance.
Verify that mobile device management (MDM) policies enforce prompt installation of Apple security updates.

Patch Information

Apple has released patches addressing CVE-2026-65404 across all impacted platforms. Consult the vendor advisories for full remediation detail: Apple Security Advisory 128071, Apple Security Advisory 128072, Apple Security Advisory 148287, Apple Security Advisory 149034, and Apple Security Advisory 149035.

Workarounds

Restrict application installation to the App Store and notarized developers using Gatekeeper policies on macOS.
Enforce application allowlisting through MDM to prevent execution of untrusted applications on iOS and iPadOS.
Review and tighten Privacy preferences for existing applications, revoking access that is not required for business function.

bash

# Verify installed macOS version meets the patched baseline
sw_vers -productVersion

# On macOS, review Gatekeeper enforcement status
spctl --status

# Enforce Gatekeeper if disabled (requires admin privileges)
sudo spctl --master-enable