{"id":"CVE-2017-16023","aliases":["EUVD-2018-0310","GHSA-q5c4-39f5-m68j"],"status":"published","title":"Regular Expression Denial of Service in decamelize","description":"Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/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":0.01433,"percentile":0.7324,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-400"],"published":"2018-06-04T19:00:00Z","modified":"2026-10-20T10:48:16Z","fixes":[{"ecosystem":"npm","package":"decamelize","fixed_in":["1.1.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"decamelize","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.1.0"},{"last_affected":"1.1.1"},{"fixed":"1.1.2"}]}]},{"source":"osv","ecosystem":"npm","package":"decamelize","ranges":[{"type":"SEMVER","events":[{"introduced":"1.1.0"},{"fixed":"1.1.2"}]}]}],"products":[{"vendor":"decamelize_project","product":"decamelize"},{"vendor":"hackerone","product":"decamelize node module"}],"references":[{"url":"https://github.com/sindresorhus/decamelize/issues/5","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nodesecurity.io/advisories/308","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16023","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-q5c4-39f5-m68j","tags":["advisory"]},{"url":"https://www.npmjs.com/advisories/308","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-16023","description":"Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.","status":"published","published":"2018-06-04T19:00:00Z","modified":"2024-09-17T01:01:40.957Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:33:21.453505Z"}],"euvd":[{"id":"EUVD-2018-0310","description":"Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.","status":"published","published":"2018-06-04T19:00:00Z","modified":"2024-09-17T01:01:40Z","updated_at":"2026-11-03T00:28:53.686001Z"}],"ghsa":[{"id":"GHSA-q5c4-39f5-m68j","title":"Regular Expression Denial of Service in decamelize","description":"Affected versions of `decamelize` are susceptible to a denial of service vulnerability when user input is passed directly into `decamelize`.\n\n\n\n\n## Recommendation\n\nUpdate to version 1.1.2 or later.","status":"published","published":"2018-07-24T20:00:17Z","modified":"2023-09-08T20:01:44Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:37:03.287418Z"}],"nvd":[{"id":"CVE-2017-16023","description":"Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.","status":"published","published":"2018-06-04T19:29:01.38Z","modified":"2026-06-17T01:08:39.53Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400","CWE-20"],"updated_at":"2026-11-02T14:04:17.638656Z"}],"osv":[{"id":"CVE-2017-16023","description":"Decamelize is used to convert a dash/dot/underscore/space separated string to camelCase. Decamelize 1.1.0 through 1.1.1 uses regular expressions to evaluate a string and takes unescaped separator values, which can be used to create a denial of service attack.","status":"published","published":"2018-06-04T19:29:01.38Z","modified":"2026-10-20T10:48:16.253025354Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:04.853379Z"},{"id":"GHSA-q5c4-39f5-m68j","title":"Regular Expression Denial of Service in decamelize","description":"Affected versions of `decamelize` are susceptible to a denial of service vulnerability when user input is passed directly into `decamelize`.\n\n\n\n\n## Recommendation\n\nUpdate to version 1.1.2 or later.","status":"published","published":"2018-07-24T20:00:17Z","modified":"2023-11-08T03:59:00.254876Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:54.055966Z"}]}}