Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 26.5 |
| Apple | Ipados | < 18.7.9 |
| Apple | Iphone Os | < 18.7.9 |
| Apple | Macos | >= 26.0, < 26.5 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/127110Vendor AdvisoryRelease Notes
- https://support.apple.com/en-us/127111Vendor AdvisoryRelease Notes
- https://support.apple.com/en-us/127115Vendor AdvisoryRelease Notes
- https://support.apple.com/en-us/127121Vendor AdvisoryRelease Notes
FAQ
What is CVE-2026-43670?
CVE-2026-43670 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 Tah...
How severe is CVE-2026-43670?
CVE-2026-43670 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43670?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Safari, Apple Ipados, Apple Iphone Os, Apple Macos.