CVE-2026-84573

Unauthorized Disclosure of Sensitive User Data in macOS

Published Sep 14, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
This issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data.

Analysis

AI-generated

Technical impact

The vulnerability stems from insufficient checks in macOS that allow an application to read sensitive user data without proper authorization. This flaw could enable an attacker or a malicious app to expose confidential information, resulting in a confidentiality breach.

Affected Systems

Apple macOS is affected. The fix is carried in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7. Devices running any of these versions that have not been updated are susceptible.

Risk and Exploitability

The CVSS score of 5.5 indicates moderate severity, suggesting that the vulnerability could lead to a moderate compromise of confidentiality. An EPSS score of < 1% is provided, indicating a very low but non‑zero probability that the vulnerability will be exploited. The vulnerability is not listed in CISA's KEV catalog, so no additional exploitation data is known. The attack is inferred to require an app running on the device, potentially with elevated privileges or from a malicious source, to exploit the missing checks and gain data. The impact remains a confidentiality breach if the vulnerability is leveraged.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest macOS update that includes the fix (Golden Gate 27, Sequoia 15.8, or Tahoe 26.7).
  • Refer to the Apple support documents (https://support.apple.com/en-us/149035, https://support.apple.com/en-us/149042, https://support.apple.com/en-us/149043) for detailed upgrade instructions.
  • If an immediate OS upgrade is not possible, restrict third‑party applications from accessing sensitive data by tightening sandboxing or disabling relevant APIs where feasible.

Generated by OpenCVE AI on September 20, 2026 at 20:09 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Title Unauthorized Disclosure of Sensitive User Data in macOS
Type Values Removed Values Added
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

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

Type Values Removed Values Added
Title Unauthorized Access to Sensitive User Data via macOS Application Vulnerability
Weaknesses CWE-200
CWE-284
Type Values Removed Values Added
Title Unauthorized Access to Sensitive User Data via macOS Application Vulnerability
Weaknesses CWE-200
CWE-284
Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Description This issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Oct 26, 2026, 8:40 PM
Reserved
Sep 1, 2026, 9:13 PM
Status
Analyzed
Published
Sep 14, 2026, 9:17 PM
Modified
Sep 17, 2026, 4:55 PM