CVE-2026-43670

High

Description

A Content Security Policy bypass was addressed with improved enforcement in AudioWorklet contexts. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5. Processing maliciously crafted web content may bypass Content Security Policy.

SeverityHigh
CVSS8.8
Exploit probability—
ProductApple Safari
PublishedAug 25, 2026
First seenAug 25, 2026
Weakness typeCWE-693CWE-693

How to fix

Update
  • apple safari26.5 or later
  • apple ipados18.7.9, 26.5 or later
  • apple iphone_os18.7.9, 26.5 or later
  • apple macos26.5 or later

Affected products

ProductAffected versionsFixed in
apple safariv < 26.526.5
apple ipadosv < 18.7.9, 26.0 ≤ v < 26.518.7.9, 26.5
apple iphone_osv < 18.7.9, 26.0 ≤ v < 26.518.7.9, 26.5
apple macos26.0 ≤ v < 26.526.5

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