CVE-2025-43801 Liferay Portal has unchecked input for loop condition vulnerability in XML-RPC

Medium 6.9 Published Updated

Remote attackers can cause denial of service in Liferay Portal via crafted XML-RPC requests due to unchecked loop conditions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-43801?

CVE-2025-43801 is a medium-severity denial of service vulnerability in Liferay Digital Experience Platform, published on 16 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unchecked input for loop condition vulnerability in XML-RPC in Liferay Portal 7.4.0 through 7.4.3.111, and older unsupported versions, and Liferay DXP 2023.Q4.0, 2023.Q3.1 through 2023.Q3.4, 7.4 GA through update 92, 7.3 GA through update 35, and older unsupported versions allows remote attackers to perform a denial-of-service (DoS) attacks via a crafted XML-RPC request.

Weakness: CWE-606

Which versions are affected by CVE-2025-43801?

2 open source packages ship an affected version, including com.liferay.portal:com.liferay.portal.impl. It affects 2 products.

PackageAffectedFixed in
com.liferay.portal:com.liferay.portal.impl MavenAll versions101.0.0
com.liferay.portal:com.liferay.portal.impl MavenAll versions101.0.0

Products include Liferay Digital Experience Platform, Liferay Liferay Portal.

How do I fix CVE-2025-43801?

Upgrade com.liferay.portal:com.liferay.portal.impl to 101.0.0 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-43801 being exploited?

There is no known exploitation of CVE-2025-43801 in the wild and no public exploit code.

All Liferay Digital Experience Platform vulnerabilities

Sources

Also known as GHSA-95h4-8mqc-4mpf.

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