Content Security Policy Bypass in Safari and iOS Products by Apple
CVE-2026-43670

Currently unrated

Key Information:

Vendor: Apple
Status: Safari; iOS And iPad OS; Mac OS
Vendor: CVE Published:; 25 August 2026

What is CVE-2026-43670?

A vulnerability exists that allows maliciously crafted web content to potentially bypass the Content Security Policy in AudioWorklet contexts. Apple addressed this issue with improved enforcement mechanisms. Users of affected versions of Safari, iOS, iPadOS, and macOS are advised to update to the latest version to mitigate the risks from this vulnerability.

Affected Version(s)

iOS and iPadOS 0 < 18.7.9

iOS and iPadOS 0 < 26.5

macOS 0 < 26.5

References

https://support.apple.com/en-us/127110

https://support.apple.com/en-us/127111

https://support.apple.com/en-us/127115

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Aug 25, 2026
Vulnerability Reserved
May 1, 2026

CVE-2026-43670 Data

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