---
id: CVE-2026-28899
title: A logic issue was addressed with improved checks
summary: >-
  A logic issue was addressed with improved checks. This issue is fixed in macOS
  Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6, macOS Tahoe 26.7. An app
  may bypass Gatekeeper checks.
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'
cwe:
  - CWE-693
vendor: apple
product: macos
affected:
  - 'macos >= 15.0, < 15.8'
  - 'macos >= 26.0, < 26.6'
patched:
  - macos 26.6
published: '2026-09-14'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T18:40:37.820'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-28899'
references:
  - url: 'https://support.apple.com/en-us/128067'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149035'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149042'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149043'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00159
epssPercentile: 0.05425
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T19:36:40.360547Z'
ingestedAt: '2026-09-14T21:15:17.525Z'
---

## Overview

A logic issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6, macOS Tahoe 26.7. An app may bypass Gatekeeper checks.

## Affected

- `macos >= 15.0, < 15.8`
- `macos >= 26.0, < 26.6`

## Remediation

Upgrade past the affected range:

- `macos 26.6`