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CVE-2026-43819: An app may be able to access sensitive user data in Apple macOS

0
Medium
VulnerabilityCVE-2026-43819cvecve-2026-43819
Published: 07/27/2026 (07/27/2026, 20:14:09 UTC)
Source: CVE Database V5
Vendor/Project: Apple
Product: macOS

Description

An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Tahoe 26.6. An app may be able to access sensitive user data.

CVSS v3.1

Score 5.5medium

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected software

Apple

macOS

Affected versions
>=0 <26.6

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/29/2026, 23:37:58 UTC

Technical Analysis

This vulnerability in Apple macOS allowed an application to access sensitive user data because of inadequate sandbox restrictions. Apple fixed the issue by enhancing sandbox controls in macOS Tahoe 26.6 to prevent unauthorized data access. The CVSS score is 5.5, reflecting a local attack vector with low complexity and no privileges required, but user interaction is needed. The impact is confidentiality loss without integrity or availability impact. No known exploits are reported in the wild. No explicit patch links or vendor advisory details are provided beyond the fix in macOS Tahoe 26.6.

Potential Impact

An attacker with local access and the ability to trick a user into interaction could exploit this vulnerability to gain unauthorized access to sensitive user data on macOS. The impact is limited to confidentiality loss; integrity and availability are not affected. There are no known active exploits in the wild.

Mitigation Recommendations

The vulnerability is fixed in macOS Tahoe 26.6 by applying additional sandbox restrictions. Users and administrators should update to macOS Tahoe 26.6 or later to remediate this issue. Patch status is confirmed by the vendor stating the fix is in macOS Tahoe 26.6. No other mitigation steps are indicated.

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Technical Details

Data Version
5.2
Assigner Short Name
apple
Date Reserved
2026-05-01T22:46:27.822Z
State
PUBLISHED

Threat ID: 6a67c1be9c2644c7f8cb122b

Added to database: 07/27/2026, 20:38:22 UTC

Last enriched: 07/29/2026, 23:37:58 UTC

Last updated: 09/11/2026, 22:06:33 UTC

Views: 40

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