Description
This issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. An app may be able to access sensitive user data.
Published: 2026-03-25
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Confidential user data exposure
Action: Apply Patch
AI Analysis

Impact

An application may read sensitive user data due to inadequate access checks, resulting in a breach of confidentiality. The weakness is an information exposure flaw (CWE‑200).

Affected Systems

Apple macOS users running versions older than macOS Tahoe 26.4 are potentially vulnerable; the issue was fixed in that release.

Risk and Exploitability

The vulnerability scores a medium CVSS score of 5.5 and has a low EPSS probability (< 1 %). It is not included in the CISA KEV catalog. An attacker would need a malicious or compromised application or a local user with sufficient privileges to benefit from the flaw, which is inferred from the description but not explicitly stated in the advisory.

Generated by OpenCVE AI on March 26, 2026 at 21:48 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade macOS to Tahoe 26.4 or later

Generated by OpenCVE AI on March 26, 2026 at 21:48 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

References
History

Fri, 27 Mar 2026 09:30:00 +0000

Type Values Removed Values Added
Title macOS Sensitive User Data Exposure via Improper Access Checks

Thu, 26 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

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

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'}


Thu, 26 Mar 2026 12:30:00 +0000

Type Values Removed Values Added
Title macOS Tahoe Vulnerability Enables Unauthorized Access to Sensitive User Data
Weaknesses CWE-200

Wed, 25 Mar 2026 22:00:00 +0000

Type Values Removed Values Added
Title macOS Tahoe Vulnerability Enables Unauthorized Access to Sensitive User Data
Weaknesses CWE-200

Wed, 25 Mar 2026 21:45:00 +0000

Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


Wed, 25 Mar 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Vendors & Products Apple
Apple macos

Wed, 25 Mar 2026 01:00:00 +0000

Type Values Removed Values Added
Description This issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. An app may be able to access sensitive user data.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-04-02T18:14:44.229Z

Reserved: 2026-03-03T16:36:03.967Z

Link: CVE-2026-28820

cve-icon Vulnrichment

Updated: 2026-03-26T19:20:58.883Z

cve-icon NVD

Status : Modified

Published: 2026-03-25T01:17:07.177

Modified: 2026-03-26T20:16:11.320

Link: CVE-2026-28820

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-27T09:20:02Z

Weaknesses