CVE-2026-64779 Race condition in Safari

Low 3.1 Published Updated

A race condition in Safari allows attackers to cause a browser crash by processing maliciously crafted web content.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-64779?

CVE-2026-64779 is a low-severity vulnerability in Apple Ipados, published on 17 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A memory corruption vulnerability was addressed with improved locking. 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, visionOS 27. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Weakness: CWE-362

Which versions are affected by CVE-2026-64779?

It affects 3 products.

Products include Apple Ipados, Apple Iphone Os, Apple Macos.

How do I fix CVE-2026-64779?

Upgrade to a fixed version.

Is CVE-2026-64779 being exploited?

There is no known exploitation of CVE-2026-64779 in the wild and no public exploit code.

All Apple Ipados vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-64779, ECHO-73c7-a927-bf4d, GHSA-p797-6vhh-hr72.

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