Severity: moderate

Regular Expression Denial of Service



Versions 4.3.1 and earlier of semver are affected by a regular expression denial of service vulnerability when extremely long version strings are parsed.


Update to version 4.3.2 or later

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Advisory timeline

  1. published

    Advisory published
    Apr 4th, 2015
  2. reported

    Initial report by Adam Baldwin
    Oct 17th, 2015