CVE-2026-86897

Authorization Bypass Enables Unauthorized Data Access in Apple Platforms

Published Sep 14, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
This issue was addressed with additional entitlement checks. This issue is fixed in Safari 27, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. An app may be able to access sensitive user data.

Analysis

AI-generated

Technical impact

An application can bypass entitlement checks in Apple Safari, iOS, iPadOS, macOS, and visionOS, allowing it to read or modify sensitive user data that should be protected. The flaw is an authorization weakness that grants unauthorized access to confidential information, potentially leading to data leakage or manipulation.

Affected Systems

The vulnerability affects any installed version of Safari, iOS, iPadOS, macOS, or visionOS that is earlier than the security updates. Unsigned or legacy releases of Safari before version 27, iOS and iPadOS before 26.7 or 27, macOS Golden Gate before 27, and visionOS before 27 remain vulnerable.

Risk and Exploitability

Based on the description, it is inferred that exploitation requires a local or malicious application that successfully evades the added entitlement checks. The CVSS score of 5.5 indicates moderate severity, and the EPSS score of less than 1 % suggests a very low likelihood of active exploitation. The vulnerability is not listed in the CISA KEV catalog, implying no widespread exploitation has been observed. The overall risk remains moderate with a low probability of an active attack at present.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade to Safari 27, iOS 26.7 or 27, iPadOS 26.7 or 27, macOS Golden Gate 27, or visionOS 27 to apply the entitlement-check fix.
  • Limit app entitlements through device‑management policies to reduce the attack surface.
  • Monitor application data‑access logs for unusual activity and investigate any unexpected reads of sensitive data.

Generated by OpenCVE AI on September 21, 2026 at 00:26 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Authorization Bypass Enables Unauthorized Data Access in Apple Platforms
Type Values Removed Values Added
Title App Unauthorized Access to Sensitive User Data Due to Improper Entitlement Checks in Apple Web Browsers and Operating Systems
Weaknesses CWE-269
CWE-284
Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os
Type Values Removed Values Added
Weaknesses CWE-862
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title App Unauthorized Access to Sensitive User Data Due to Improper Entitlement Checks in Apple Web Browsers and Operating Systems
Weaknesses CWE-269
CWE-284
Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Apple safari
Apple visionos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple safari
Apple visionos
Type Values Removed Values Added
Description This issue was addressed with additional entitlement checks. This issue is fixed in Safari 27, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. An app may be able to access sensitive user data.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Oct 26, 2026, 8:34 PM
Reserved
Sep 8, 2026, 4:43 PM
Status
Analyzed
Published
Sep 14, 2026, 9:17 PM
Modified
Sep 18, 2026, 12:22 PM