CVE-2026-1464
Integer Overflow in MuntashirAkon AppManager TarUtils Module
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 |
|---|---|---|
| muntashirakon | appmanager | to 4.0.4 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-190 | The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an integer overflow or wraparound issue in the AppManager application, specifically in the TarUtils.java file used for parsing tar archive headers. The flaw occurs during the parsing of PAX headers, where integer overflow can lead to incorrect memory allocation or buffer overflows. This can cause the program to behave unexpectedly or be exploited. The issue was fixed by adding integer overflow protection to the parsing code. [1]
How can this vulnerability impact me? :
The integer overflow vulnerability can lead to incorrect memory allocation or buffer overflows, which may cause the application to crash, behave unpredictably, or potentially allow an attacker to execute arbitrary code or escalate privileges. This can compromise the security and stability of the system running the vulnerable AppManager version. [1]
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should update AppManager to version 4.0.4 or later, which includes the security fix addressing the integer overflow in the TarUtils.java file. The fix prevents integer overflow errors during header parsing and was merged in pull request #1598. Applying this update will protect your system from this vulnerability. [1]