{"id":"CVE-2016-10703","aliases":["EUVD-2017-0364","GHSA-pm9p-9926-w68m"],"status":"published","title":"Denial of Service in ecstatic","description":"A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm package, before version 2.0.0, allows a remote attacker to overload and crash a server by passing a maliciously crafted string.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02557,"percentile":0.85181,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-400"],"published":"2017-12-14T19:00:00Z","modified":"2026-10-20T10:47:35Z","fixes":[{"ecosystem":"npm","package":"ecstatic","fixed_in":["2.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"ecstatic","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"ecstatic","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}]}],"products":[{"vendor":"ecstatic_project","product":"ecstatic"}],"references":[{"url":"https://www.checkmarx.com/advisories/denial-of-service-dos-vulnerability-in-ecstatic-npm-package/","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/jfhbrook/node-ecstatic/commit/71ce93988ead4b561a8592168c72143907189f01","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","fix","web"]},{"url":"https://advisory.checkmarx.net/advisory/CX-2016-4450","tags":["x_refsource_MISC","x_transferred","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-10703","tags":["advisory"]},{"url":"https://github.com/jfhbrook/node-ecstatic/commit/71ce93988ead4b561a8592168c72143907189f01#diff-b2b5a88fb51675f1aa1065c093dce1ee","tags":["web"]},{"url":"https://github.com/advisories/GHSA-pm9p-9926-w68m","tags":["advisory"]},{"url":"https://www.npmjs.com/advisories/553","tags":["web"]},{"url":"https://github.com/jfhbrook/node-ecstatic","tags":["package"]},{"url":"https://www.checkmarx.com/advisories/denial-of-service-dos-vulnerability-in-ecstatic-npm-package","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2016-10703","description":"A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm package, before version 2.0.0, allows a remote attacker to overload and crash a server by passing a maliciously crafted string.","status":"published","published":"2017-12-14T19:00:00Z","modified":"2024-08-06T03:30:20.174Z","updated_at":"2026-11-02T14:33:31.117878Z"}],"euvd":[{"id":"EUVD-2017-0364","description":"A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm package, before version 2.0.0, allows a remote attacker to overload and crash a server by passing a maliciously crafted string.","status":"published","published":"2017-12-14T19:00:00Z","modified":"2024-08-06T03:30:20Z","updated_at":"2026-11-03T02:22:23.66215Z"}],"ghsa":[{"id":"GHSA-pm9p-9926-w68m","title":"Denial of Service in ecstatic","description":"`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.","status":"published","published":"2017-12-28T22:52:47Z","modified":"2023-04-11T00:21:46Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:36:50.476488Z"}],"nvd":[{"id":"CVE-2016-10703","description":"A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm package, before version 2.0.0, allows a remote attacker to overload and crash a server by passing a maliciously crafted string.","status":"published","published":"2017-12-14T19:29:00.197Z","modified":"2026-06-17T00:40:11.64Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:39.176887Z"}],"osv":[{"id":"CVE-2016-10703","description":"A regular expression Denial of Service (DoS) vulnerability in the file lib/ecstatic.js of the ecstatic npm package, before version 2.0.0, allows a remote attacker to overload and crash a server by passing a maliciously crafted string.","status":"published","published":"2017-12-14T19:29:00.197Z","modified":"2026-10-20T10:47:35.07940761Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:01.531338Z"},{"id":"GHSA-pm9p-9926-w68m","title":"Denial of Service in ecstatic","description":"`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.","status":"published","published":"2017-12-28T22:52:47Z","modified":"2023-11-08T03:58:21.144728Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:53.244788Z"}]}}