{"id":"CVE-2025-67731","revision":"3bf7675ff2a94688b25c9a6dffbb22c6","records":[{"revision":"3bf7675ff2a94688b25c9a6dffbb22c6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-67731","aliases":[],"title":"Servify Express does not enforce rate limiting when parsing JSON","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.","state":0,"publishedAt":"2025-12-12T07:40:53.047+00:00","modifiedAt":"2025-12-12T20:44:17.68+00:00","affected":[{"ecosystem":"Vendor product","name":"servify-express","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Aarondoran\",\n                    \"product\": \"servify-express\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.7,"severity":"HIGH"}],"references":["https://github.com/Aarondoran/servify-express/security/advisories/GHSA-qgc4-8p88-4w7m","https://github.com/Aarondoran/servify-express/commit/8dff7f56504b356278d849734ef2050e5cd23b61","https://github.com/Aarondoran/servify-express/releases/tag/V1.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-67731","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-67731","identifiers":["CVE-2025-67731"]},"retained":false,"historicalAffected":[]}],"coverage":[]}