CVE-2026-24819
Improper Memory Allocation Vulnerability in weixin4j Components
Publication date: 2026-01-27
Last updated on: 2026-01-27
Assigner: Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| foxinmy | weixin4j | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-1325 | The product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in foxinmy weixin4j involves improperly controlled sequential memory allocation within certain utility modules. It relates to how memory is allocated sequentially without proper controls, which can lead to potential security issues in the affected program files CharArrayBuffer.Java and ClassUtil.Java.
How can this vulnerability impact me? :
The vulnerability could lead to security risks such as unauthorized memory access or manipulation, potentially causing application instability or exploitation by attackers. This may result in compromised application behavior or data integrity issues.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update the weixin4j library to the latest version where the issue has been addressed. The fix involves proper permission handling when accessing the thread context ClassLoader, including handling security exceptions and implementing fallback behavior. Applying this update will ensure secure and consistent operation in environments with restrictive security policies. [1]