What’s Vulnerable › Vulnerabilities

CVE-2026-20676

• Severity: medium (CVSS 5.3 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: 2026-02-11 · updated 2026-06-17
• Weakness: CWE-400

Description

This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.

Affected products

• Apple iPadOS: before 26.3 — fixed in 26.3
• Apple Iphone Os: before 26.3 — fixed in 26.3
• Apple macOS: before 26.3 — fixed in 26.3
• Apple Safari: before 26.3 — fixed in 26.3
• Apple visionOS: before 26.3 — fixed in 26.3

How to fix

Upgrade to a fixed version: Apple iPadOS 26.3; Apple Iphone Os 26.3; Apple macOS 26.3; Apple Safari 26.3; Apple visionOS 26.3. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/126346
• https://support.apple.com/en-us/126348
• https://support.apple.com/en-us/126353
• https://support.apple.com/en-us/126354

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