8.7
/ 10
HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
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.
AI Analysis
Denial of Service (DoS) vulnerability due to lack of rate limiting when parsing JSON
Basic Information
ID
CVE-2025-67731
Source
GitHub_M
Published
Dec 12, 2025 at 07:40
Affected Product
Vendor
Aarondoran
Product
servify-express
Version
< 1.2
Affected Versions
Aarondoran servify-express < 1.2
CWE Classification
AI Assessment
AI Score
8.7 / 10
AI Severity
High
Vendor
Aarondoran
Product
Servify Express
Version
< 1.2