Memory Leak in Liferay Portal 7.4.x Headless API Causing DoS
CVE-2025-43816 Published on September 25, 2025
A memory leak in the headless API for StructuredContents in Liferay Portal 7.4.0 through 7.4.3.119, and older unsupported versions, and Liferay DXP 2024.Q1.1 through 2024.Q1.5, 2023.Q4.0 through 2024.Q4.10, 2023.Q3.1 through 2023.Q3.10, 7.4 GA through update 92, and older unsupported versions allows an attacker to cause server unavailability (denial of service) via repeatedly calling the API endpoint.
Weakness Type
What is a Memory Leak Vulnerability?
The software does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is often triggered by improper handling of malformed data or unexpectedly interrupted sessions. In some languages, developers are responsible for tracking memory allocation and releasing the memory. If there are no more pointers or references to the memory, then it can no longer be tracked and identified for release.
CVE-2025-43816 has been classified to as a Memory Leak vulnerability or weakness.
Products Associated with CVE-2025-43816
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Affected Versions
Liferay Portal:- Version 7.4.0, <= 7.4.3.119 is affected.
- Version 7.4.13, <= 7.4.13-u92 is affected.
- Version 2023.Q3.1, <= 2023.Q3.10 is affected.
- Version 2023.Q4.0, <= 2023.Q4.10 is affected.
- Version 2024.Q1.1, <= 2024.Q1.5 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.