CVE-2025-30466

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-05-29 · updated 2026-06-17
Weakness: CWE-346

Description

This issue was addressed through improved state management. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4. A website may be able to bypass Same Origin Policy.

Affected products

Apple iPadOS: before 18.4 — fixed in 18.4
Apple Iphone Os: before 18.4 — fixed in 18.4
Apple macOS: before 15.4 — fixed in 15.4
Apple Safari: before 18.4 — fixed in 18.4
Apple visionOS: before 2.4 — fixed in 2.4

How to fix

Upgrade to a fixed version: Apple iPadOS 18.4; Apple Iphone Os 18.4; Apple macOS 15.4; Apple Safari 18.4; Apple visionOS 2.4. Check the vendor advisory for mitigations.

References

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