---
id: "CVE-2026-112640"
kind: "vulnerability"
aliases: ["CVE-2026-112640"]
title: "Apple Safari and iOS: use-after-free lets crafted web content corrupt memory"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["ios", "ipados", "macos", "safari", "tvos", "vendor", "visionos", "watchos", "webkit"]
not_affected_if: ["already-patched"]
published_at: "2026-10-26T21:17:57+00:00"
first_seen_at: "2026-10-26T21:20:29+00:00"
updated_at: "2026-10-26T21:24:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112640", "first_seen_at": "2026-10-26T21:20:29+00:00"}]
---

# Apple Safari and iOS: use-after-free lets crafted web content corrupt memory

A use-after-free bug in Apple's WebKit-based browser engine lets maliciously crafted web content corrupt memory. Memory corruption from web content can be used to run attacker code in the browser process.

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

## How to check

- Check the Safari version under Safari > About Safari, or the OS version under Settings > General > About
- Compare against the fixed builds: Safari `27.2`, iOS and iPadOS `26.7.2` or `27.2`, macOS `27.2`, tvOS, visionOS and watchOS `27.2`

## Fix

- Update Safari to `27.2` or later
- Update iOS and iPadOS to `26.7.2` or `27.2`, macOS to `27.2`, tvOS, visionOS and watchOS to `27.2`

## Timeline

- 2026-10-26T21:20:29+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112640

## From the sources

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2, watchOS 27.2. Processing maliciously crafted web content may lead to memory corruption.

---

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