This issue was addressed by removing the vulnerable code.

Summary

This issue was addressed by removing the vulnerable code. This issue is fixed in Safari 27.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2. A remote attacker may be able to break out of Web Content sandbox.

Remediation

1. Inventory every Apple Safari deployment, including staging.
2. Upgrade Apple Safari to 27.2.
3. Confirm the running version after the upgrade.

References

• Advisoryhttps://support.apple.com/en-us/149230
• Advisoryhttps://support.apple.com/en-us/149521
• Advisoryhttps://support.apple.com/en-us/149526
• Advisoryhttps://support.apple.com/en-us/149527