---
id: "CVE-2026-28854"
kind: "vulnerability"
aliases: ["CVE-2026-28854"]
title: "Apple macOS: app bundle integrity checks missing, modified apps may launch"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["apple", "endpoints", "infrastructure", "macos"]
not_affected_if: ["macos-golden-gate-27-or-later"]
published_at: "2026-10-20T01:17:11+00:00"
first_seen_at: "2026-10-23T21:57:19+00:00"
updated_at: "2026-10-25T05:06:14+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28854", "first_seen_at": "2026-10-23T21:57:19+00:00"}]
---

# Apple macOS: app bundle integrity checks missing, modified apps may launch

A maliciously modified macOS app may not be blocked from launching, because the system lacked full app bundle integrity checks. Apple fixed it with additional checks in macOS Golden Gate 27.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `sw_vers -productVersion` on the Mac and compare against the fixed release named by Apple
- unknown for further checks: the sources do not describe a specific file or setting

## Fix

- Update macOS to Golden Gate 27 or later via Software Update
- unknown for an earlier interim build number: the sources do not name one

## Timeline

- 2026-10-23T21:57:19+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-28854

## From the sources

The issue was addressed with additional app bundle integrity checks. This issue is fixed in macOS Golden Gate 27. A maliciously modified app may not be prevented from launching.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_