CVE-2026-43670: Apple iPadOS

High severity, CVSS 8.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Apple iPadOS: before 18.7.9 (fixed in 18.7.9); from 26.0, before 26.5 (fixed in 26.5)
• Apple iPhone OS: before 18.7.9 (fixed in 18.7.9); from 26.0, before 26.5 (fixed in 26.5)
• Apple macOS: from 26.0, before 26.5 (fixed in 26.5)
• Apple Safari: before 26.5 (fixed in 26.5)

Published 2026-08-25. Last modified 2026-08-27.