CVE-2025-62584 Security feature bypass in NAVER Whale browser

High 7.5 Published Updated

An attacker can bypass the Same-Origin Policy in NAVER Whale browser, potentially compromising user data isolation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-62584?

CVE-2025-62584 is a high-severity vulnerability in NAVER Whale browser, published on 16 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Whale browser before 4.33.325.17 allows an attacker to bypass the Same-Origin Policy in a dual-tab environment.

Weakness: CWE-346

Which versions are affected by CVE-2025-62584?

It affects 1 product.

Products include Navercorp Whale.

How do I fix CVE-2025-62584?

No fix has been published for CVE-2025-62584 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-62584 being exploited?

There is no known exploitation of CVE-2025-62584 in the wild and no public exploit code.

Sources

Also known as GHSA-9pxh-fhm5-6rwh.

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