---
id: "CVE-2026-112521"
kind: "vulnerability"
aliases: ["CVE-2026-112521"]
title: "macOS: buffer overflow lets a sandboxed process escape its sandbox"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["apple-devices", "infrastructure", "macos"]
not_affected_if: ["already-patched"]
published_at: "2026-10-26T21:17:44+00:00"
first_seen_at: "2026-10-26T21:20:27+00:00"
updated_at: "2026-10-26T21:29:27+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112521", "first_seen_at": "2026-10-26T21:20:27+00:00"}]
---

# macOS: buffer overflow lets a sandboxed process escape its sandbox

A buffer overflow in macOS lets a sandboxed process get around its sandbox restrictions. Apple fixed it with better bounds checking in macOS Golden Gate 27.2, Sequoia 15.8.2 and Tahoe 26.7.2.

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

## How to check

- Run `sw_vers -productVersion` and compare the result with the fixed versions above.
- unknown for anything beyond the OS version; the sources do not name a specific setting or file.

## Fix

- Update macOS to `27.2` (Golden Gate), `15.8.2` (Sequoia) or `26.7.2` (Tahoe), whichever matches the installed major release.

## Timeline

- 2026-10-26T21:20:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112521

## From the sources

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A sandboxed process may be able to circumvent sandbox restrictions.

---

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