CVE-2025-67731 (GCVE-0-2025-67731)
Vulnerability from cvelistv5 – Published: 2025-12-12 07:40 – Updated: 2025-12-12 20:44
VLAI
EPSS
VEX
Title
Servify Express does not enforce rate limiting when parsing JSON
Summary
Servify Express is a Node.js package to start an Express server and log the port it's running on. Prior to 1.2, the Express server used express.json() without a size limit, which could allow attackers to send extremely large request bodies. This can cause excessive memory usage, degraded performance, or process crashes, resulting in a Denial of Service (DoS). Any application using the JSON parser without limits and exposed to untrusted clients is affected. The issue is not a flaw in Express itself, but in configuration. This issue is fixed in version 1.2. To work around, consider adding a limit option to the JSON parser, rate limiting at the application or reverse-proxy level, rejecting unusually large requests before parsing, or using a reverse proxy (such as NGINX) to enforce maximum request body sizes.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-12 20:43 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/Aarondoran/servify-express/sec… | x_refsource_CONFIRM |
| https://github.com/Aarondoran/servify-express/com… | x_refsource_MISC |
| https://github.com/Aarondoran/servify-express/rel… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Aarondoran | servify-express |
Affected:
< 1.2
|
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