CVE-2025-69234

Critical

Description

Whale browser before 4.35.351.12 allows an attacker to escape the iframe sandbox in a sidebar environment.

SeverityCritical
CVSS9.1
Exploit probability—
ProductNavercorp Whale
PublishedDec 30, 2025
First seenDec 30, 2025
Weakness typeCWE-358CWE-358

How to fix

Update
  • navercorp whale4.35.351.12 or later

Affected products

ProductAffected versionsFixed in
navercorp whalev < 4.35.351.124.35.351.12

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.