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.
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Fri, 12 Dec 2025 21:15:00 +0000
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| 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. | |
| Title | Servify Express does not enforce rate limiting when parsing JSON | |
| Weaknesses | CWE-400 | |
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-12-12T07:40:53.047Z
Updated: 2025-12-12T20:44:17.680Z
Reserved: 2025-12-10T20:04:28.290Z
Link: CVE-2025-67731
Updated: 2025-12-12T20:44:12.411Z
Status : Awaiting Analysis
Published: 2025-12-12T08:15:48.367
Modified: 2025-12-12T15:17:31.973
Link: CVE-2025-67731
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