---
id: "CVE-2026-112539"
kind: "vulnerability"
aliases: ["CVE-2026-112539"]
title: "macOS: a malicious app can read or write protected files"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["apple-devices", "macos", "other"]
not_affected_if: ["already-patched-macos"]
published_at: "2026-10-26T21:17:46+00:00"
first_seen_at: "2026-10-26T21:20:27+00:00"
updated_at: "2026-10-26T21:28:10+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112539", "first_seen_at": "2026-10-26T21:20:27+00:00"}]
---

# macOS: a malicious app can read or write protected files

Apple fixed a permissions flaw in macOS where a malicious app could access protected files. An attacker who gets a malicious app onto a Mac can read or write files that should be off limits to it.

_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 the result with the fixed builds below
- Check for a pending update in System Settings > General > Software Update

## Fix

- Update macOS to `27.2` (Golden Gate), `15.8.2` (Sequoia), or `26.7.2` (Tahoe) or later

## Timeline

- 2026-10-26T21:20:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112539

## From the sources

A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A malicious app may be able to read or write to protected files.

---

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