What’s Vulnerable › Vulnerabilities

CVE-2026-86898

• Severity: medium (CVSS 5.4 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: 2026-09-14 · updated 2026-10-26
• Weakness: CWE-79

Description

A logic issue was addressed with improved state management. This issue is fixed in Safari 27, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. Opening a maliciously crafted webarchive file may lead to universal cross-site scripting.

Affected products

• Apple iPadOS: before 27.0 — fixed in 27.0
• Apple Iphone Os: before 27.0 — fixed in 27.0
• Apple macOS: before 27.0 — fixed in 27.0
• Apple Safari: before 27.0 — fixed in 27.0
• Apple visionOS: before 27.0 — fixed in 27.0
• Apple iOS and iPadOS: before 27 — fixed in 27
• Apple macOS: before 27 — fixed in 27
• Apple Safari: before 27 — fixed in 27
• Apple visionOS: before 27 — fixed in 27

How to fix

Upgrade to a fixed version: Apple iPadOS 27.0; Apple Iphone Os 27.0; Apple macOS 27.0; Apple Safari 27.0; Apple visionOS 27.0; Apple iOS and iPadOS 27; Apple macOS 27; Apple Safari 27; Apple visionOS 27. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/149034
• https://support.apple.com/en-us/149035
• https://support.apple.com/en-us/149038
• https://support.apple.com/en-us/149039

Get alerted when CVE-2026-86898 or the next vulnerability affects your stack