Description

A logic issue was addressed with improved state management. This issue is fixed in Safari 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to unexpected behavior.

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References

Other References

https://support.apple.com/en-us/149037 https://support.apple.com/en-us/149038 https://support.apple.com/en-us/149039

Frequently Asked Questions

What is CVE-2026-86872? +

A logic issue was addressed with improved state management. This issue is fixed in Safari 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to unexpected behavior.

How do I check if I'm vulnerable to CVE-2026-86872? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.