CVE-2026-64778

MEDIUM 6.5CVE-2026-64778 · Published 17/08/2026 · updated 14/09/2026

In short

CVE-2026-64778 is a MEDIUM (CVSS 6.5) vulnerability affecting safari (apple).
Chance of exploitation in the next 30 days (EPSS): 0.34%, higher than 27.3% of all vulnerabilities.
Fix: update to 26.6.1 or later.

Package	Affected versions	Patched versions
safari apple	`< 26.6.1`	`26.6.1`

Description

The issue was addressed with improved checks. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Visiting a maliciously crafted website may leak sensitive data.

References

support.apple.com/en-us/148281 · Release Notes
support.apple.com/en-us/148282 · Release Notes
support.apple.com/en-us/148286 · Release Notes
support.apple.com/en-us/148287 · Release Notes
support.apple.com/en-us/149036
support.apple.com/en-us/149037
support.apple.com/en-us/149038

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Package

Affected versions

Patched versions

safari

apple

< 26.6.1

26.6.1

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