{"id":"CVE-2016-10703","aliases":["GHSA-pm9p-9926-w68m"],"url":"https://o3.security/vulnerability/CVE-2016-10703","summary":"Denial of Service in ecstatic","details":"`ecstatic`, a simple static file server middleware, is vulnerable to denial of service. If a payload with a large number of null bytes (`%00`) is provided by an attacker it can crash ecstatic by running it out of memory.\n\n\n[Results from the original advisory](https://www.checkmarx.com/advisories/denial-of-service-dos-vulnerability-in-ecstatic-npm-package/)\n\n```\nA payload of 22kB caused a lag of 1 second,\nA payload of 35kB caused a lag of 3 seconds,\nA payload of 86kB caused the server to crash\n```\n\n\n## Recommendation\n\nUpdate to version 2.0.0 or later.","published":"2017-12-14T19:29:00.197Z","modified":"2026-07-08T12:43:15.092695Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"ecstatic","fixedVersion":"2.0.0"}],"fix":{"url":"https://github.com/jfhbrook/node-ecstatic/commit/71ce93988ead4b561a8592168c72143907189f01","label":"jfhbrook/node-ecstatic@71ce939"},"references":[{"type":"ADVISORY","url":"https://advisory.checkmarx.net/advisory/CX-2016-4450"},{"type":"FIX","url":"https://github.com/jfhbrook/node-ecstatic/commit/71ce93988ead4b561a8592168c72143907189f01"},{"type":"FIX","url":"https://www.checkmarx.com/advisories/denial-of-service-dos-vulnerability-in-ecstatic-npm-package/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-10703"},{"type":"WEB","url":"https://github.com/jfhbrook/node-ecstatic/commit/71ce93988ead4b561a8592168c72143907189f01#diff-b2b5a88fb51675f1aa1065c093dce1ee"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-pm9p-9926-w68m"},{"type":"PACKAGE","url":"https://github.com/jfhbrook/node-ecstatic"},{"type":"WEB","url":"https://www.checkmarx.com/advisories/denial-of-service-dos-vulnerability-in-ecstatic-npm-package"},{"type":"WEB","url":"https://www.npmjs.com/advisories/553"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T12:43:15.092695Z"}}