---
id: CVE-2026-43746
title: A use-after-free issue was addressed with improved memory management
summary: >-
  A use-after-free issue was addressed with improved memory management. This
  issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2
  and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web
  content may …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-416
vendor: apple
product: safari
affected:
  - safari < 26.5.2
  - ipados < 26.5.2
  - iphone_os < 26.5.2
  - 'macos >= 26.0, < 26.5.2'
patched:
  - safari 26.5.2
  - ipados 26.5.2
  - iphone_os 26.5.2
  - macos 26.5.2
published: '2026-06-29'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:17:10.137'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-43746'
references:
  - url: 'https://support.apple.com/en-us/127594'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127595'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/127685'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/148287'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00341
epssPercentile: 0.24759
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-29T21:33:07.404061Z'
ingestedAt: '2026-09-14T21:15:17.506Z'
---

## Overview

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.

## Affected

- `safari < 26.5.2`
- `ipados < 26.5.2`
- `iphone_os < 26.5.2`
- `macos >= 26.0, < 26.5.2`

## Remediation

Upgrade past the affected range:

- `safari 26.5.2`
- `ipados 26.5.2`
- `iphone_os 26.5.2`
- `macos 26.5.2`