CVE-2018-1000073: Rubygems

High severity, CVSS 7.5. EPSS: 4.9% chance of exploitation in the next 30 days.

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Directory Traversal vulnerability in install_location function of package.rb that can result in path traversal when writing to a symlinked basedir outside of the root. This vulnerability appears to have been fixed in 2.7.6.

Affected products

• Rubygems Rubygems: up to and including 2.2.9; up to and including 2.3.6; up to and including 2.4.3; up to and including 2.5.0

Published 2018-03-13. Last modified 2026-06-17.