---
id: "CVE-2026-84610"
kind: "vulnerability"
aliases: ["CVE-2026-84610"]
title: "macOS: crafted ZIP archive can bypass Gatekeeper quarantine checks"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["endpoints", "infrastructure", "macos"]
not_affected_if: ["already-patched"]
published_at: "2026-10-26T21:20:16+00:00"
first_seen_at: "2026-10-26T21:55:21+00:00"
updated_at: "2026-10-26T21:57:08+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84610", "first_seen_at": "2026-10-26T21:55:21+00:00"}]
---

# macOS: crafted ZIP archive can bypass Gatekeeper quarantine checks

A maliciously crafted ZIP archive can bypass the file quarantine checks that Gatekeeper applies to downloaded files. An attacker who gets a user to open such an archive can run software that macOS would otherwise block or warn about.

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

## How to check

- Run `sw_vers -productVersion` and compare against the fixed versions: `27`, `15.8.2`, `26.7.2`
- unknown

## Fix

- Update macOS to `27`, `15.8.2` or `26.7.2`, or later on the same release line
- unknown

## Timeline

- 2026-10-26T21:55:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-84610

## From the sources

A file quarantine bypass was addressed with additional checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A maliciously crafted ZIP archive may bypass Gatekeeper checks.

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