CVE-2025-31266 Other in Safari

Medium 4.3 Published Updated

Attackers can spoof domain names in pop-up window titles, potentially misleading users about the site's identity.

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-2025-31266?

CVE-2025-31266 is a medium-severity vulnerability in Apple Macos, published on 21 Nov 2025. 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 spoofing issue was addressed with improved truncation when displaying the fully qualified domain name. This issue is fixed in Safari 18.5, macOS Sequoia 15.5. A website may be able to spoof the domain name in the title of a pop-up window.

Weakness: CWE-451

Which versions are affected by CVE-2025-31266?

It affects 2 products.

Products include Apple Macos, Apple Safari.

How do I fix CVE-2025-31266?

No fix has been published for CVE-2025-31266 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-31266 being exploited?

There is no known exploitation of CVE-2025-31266 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-3x9f-jgfq-gjmx.

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