Logic Issue in Safari and Apple Operating Systems Affecting Multiple Versions
CVE-2026-86898

5.4MEDIUM

Key Information:

Vendor

Apple
Status
Safari
iOS And iPad OS
Mac OS
Visionos
Vendor
CVE Published:
14 September 2026

What is CVE-2026-86898?

A logic issue within Apple's Safari browser and several of its operating systems has been identified, which could lead to universal cross-site scripting. The vulnerability is linked to the improper handling of state management when opening a maliciously crafted webarchive file. Users are encouraged to update to the latest versions of Safari, iOS, iPadOS, macOS, and visionOS to mitigate any potential risk associated with this vulnerability.

Affected Version(s)

iOS and iPadOS 0 < 27

macOS 0 < 27

Safari 0 < 27

References

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

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.