---
id: "CVE-2026-86941"
kind: "vulnerability"
aliases: ["CVE-2026-86941"]
title: "macOS: quarantine bypass lets an app skip Gatekeeper checks"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["endpoints", "infrastructure", "macos"]
not_affected_if: ["fixed-macos-build"]
published_at: "2026-10-26T21:20:31+00:00"
first_seen_at: "2026-10-26T21:55:22+00:00"
updated_at: "2026-10-26T21:56:52+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86941", "first_seen_at": "2026-10-26T21:55:22+00:00"}]
---

# macOS: quarantine bypass lets an app skip Gatekeeper checks

A file quarantine bypass in macOS lets an app skip Gatekeeper checks on files it handles. The sources do not say what the attacker gains beyond that bypass.

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

## How to check

- Check the installed macOS version with `sw_vers`
- Compare it against the fixed builds: macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2
- unknown for any other check, the sources do not say

## Fix

- Update macOS to `27.2` (Golden Gate), `15.8.2` (Sequoia) or `26.7.2` (Tahoe), matching the installed major release
- unknown for any other action, the sources do not say

## Timeline

- 2026-10-26T21:55:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-86941

## From the sources

A file quarantine bypass was addressed with additional checks. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An app may bypass Gatekeeper checks.

---

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