Liferay Portal/DXP StructuredContents API Endpoint memory leak
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.4 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Liferay Portal and DXP. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component StructuredContents API Endpoint. Performing a manipulation results in memory leak. This vulnerability is identified as CVE-2025-43816. The attack can be initiated remotely. There is not any exploit available.
Details
A vulnerability was found in Liferay Portal and DXP (version unknown). It has been classified as problematic. This affects an unknown function of the component StructuredContents API Endpoint. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability. The summary by CVE is:
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.
The advisory is shared at liferay.dev. This vulnerability is uniquely identified as CVE-2025-43816 since 04/17/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-2137). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Affected
- Liferay Portal
- Liferay DXP
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Memory leakCWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
04/17/2025 CVE reserved09/26/2025 Advisory disclosed
09/26/2025 VulDB entry created
12/16/2025 VulDB entry last update
Sources
Advisory: liferay.devStatus: Confirmed
CVE: CVE-2025-43816 (🔒)
GCVE (CVE): GCVE-0-2025-43816
GCVE (VulDB): GCVE-100-325941
CERT Bund: WID-SEC-2025-2137 - Liferay Portal: Schwachstelle ermöglicht Denial of Service
Entry
Created: 09/26/2025 06:14Updated: 12/16/2025 00:29
Changes: 09/26/2025 06:14 (65), 09/27/2025 08:46 (7), 12/16/2025 00:29 (11)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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