CVE-2026-43708 Information disclosure in Safari

Medium 4.3 Published Updated

A malicious website can exfiltrate data cross-origin due to insufficient input validation in Apple Safari and related operating systems.

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
None listed

What is CVE-2026-43708?

CVE-2026-43708 is a medium-severity vulnerability in Apple Ipados, published on 29 Jun 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

The issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. A malicious website may exfiltrate data cross-origin.

Weakness: CWE-20

Which versions are affected by CVE-2026-43708?

It affects 4 products.

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

How do I fix CVE-2026-43708?

No fix has been published for CVE-2026-43708 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-43708 being exploited?

There is no known exploitation of CVE-2026-43708 in the wild and no public exploit code.

All Apple Ipados vulnerabilities

Sources

Also known as GHSA-3555-mvv3-v5xj.

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