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CVE-2026-43783: A malicious app may be able to gain root privileges in Apple macOS

0
High
VulnerabilityCVE-2026-43783cvecve-2026-43783
Published: 09/14/2026 (09/14/2026, 20:50:57 UTC)
Source: CVE Database V5
Vendor/Project: Apple
Product: macOS

Description

A race condition was addressed with improved locking. This issue is fixed in macOS Tahoe 26.6. A malicious app may be able to gain root privileges.

CVSS v3.1

Score 7.8high

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

Affected software

Apple

macOS

Affected versions
>=0 <26.6

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/14/2026, 22:24:20 UTC

Technical Analysis

CVE-2026-43783 is a race condition vulnerability in Apple macOS that could enable a malicious app to escalate privileges to root. The vulnerability is resolved by improved locking in macOS Tahoe 26.6. Prior versions are susceptible to exploitation that may grant unauthorized root access.

Potential Impact

A successful exploit of this vulnerability could allow a malicious application to gain root privileges on the affected macOS system, potentially leading to full system compromise.

Mitigation Recommendations

Upgrade macOS to version 26.6 or later, where the race condition has been fixed with improved locking. No other mitigation is indicated.

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Technical Details

Data Version
5.2
Assigner Short Name
apple
Date Reserved
2026-05-01T22:46:27.819Z
State
PUBLISHED

Threat ID: 6aa860f455bf5e2cf59d22df

Added to database: 09/14/2026, 21:02:44 UTC

Last enriched: 09/14/2026, 22:24:20 UTC

Last updated: 09/15/2026, 04:02:03 UTC

Views: 3

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