CVE-2026-86904

Privacy Issue: Application Track Users Across Apps Without Permission

Published Sep 14, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
A privacy issue was addressed with improved state management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, watchOS 27. An app may be able to track users across apps and websites without permission.

Analysis

AI-generated

Technical impact

Apple identified an issue involving improper state management that could allow an application to track a user across multiple apps and websites without the user’s permission. The flaw does not provide code execution or denial‑of‑service capabilities; it simply enables a malicious app to gather and correlate personal and potential identity tracking.

Affected Systems

The vulnerability impacts Apple’s mobile platforms: iOS, iPadOS, and watchOS. The issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, and watchOS 27. Devices running earlier OS versions are susceptible.

Risk and Exploitability

The EPSS score is < 1%, indicating a very low exploitation probability, and the vulnerability is not listed in the CISA KEV catalog, suggesting low exploitation risk at this time. An attacker would need to supply or entice a user to install a malicious application that exploits the state‑management flaw; therefore, the attack vector is likely through the App Store or sideloading. The primary impact remains the unauthorized aggregation of personal data, which could enable targeted phishing or advertising campaigns. Due to the very low exploitation probability, the risk is considered moderate but should still be addressed promptly because privacy exposure can accumulate over time. The CVSS score is 7.5, indicating high severity.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the latest iOS, iPadOS, or watchOS updates that include the 26.7 or 27 fix
  • Restrict background activity and review app permissions by disabling Background App Refresh for non‑essential apps in Settings → General → Background App Refresh
  • Remove or avoid installing applications that request unnecessary permissions or have not been updated recently

Generated by OpenCVE AI on September 20, 2026 at 18:28 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Privacy Issue: Application Track Users Across Apps Without Permission
Type Values Removed Values Added
Title Cross-Application Tracking via Improper State Management in iOS, iPadOS, and watchOS
Weaknesses CWE-200
CWE-264
Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os
Type Values Removed Values Added
Weaknesses CWE-359
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Cross-Application Tracking via Improper State Management in iOS, iPadOS, and watchOS
Weaknesses CWE-200
CWE-264
Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple watchos
Vendors & Products Apple
Apple ios And Ipados
Apple watchos
Type Values Removed Values Added
Description A privacy issue was addressed with improved state management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, watchOS 27. An app may be able to track users across apps and websites without permission.
References
Weaknesses
  • CWE-359

    Exposure of Private Personal Information to an Unauthorized Actor

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Oct 26, 2026, 8:43 PM
Reserved
Sep 8, 2026, 4:43 PM
Status
Analyzed
Published
Sep 14, 2026, 9:17 PM
Modified
Sep 16, 2026, 1:02 AM