{"id":"CVE-2018-1000079","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-1000079","generatedAt":"2026-10-28T22:12:27.968Z","title":"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 gem…","description":"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 gem installation that can result in the gem could write to arbitrary filesystem locations during installation. This attack appear to be exploitable via the victim must install a malicious gem. This vulnerability appears to have been fixed in 2.7.6.","published":"2018-03-13T15:29:01.000Z","lastModified":"2026-06-17T01:32:23.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},"cwe":["CWE-22"],"affected":["rubygems/rubygems"],"epss":{"score":0.02779,"percentile":0.863,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.03871,"percentile":0.89754},{"date":"2026-09-22","score":0.02779,"percentile":0.85753}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (2.78%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://blog.rubygems.org/2018/02/15/2.7.6-released.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:3729","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:3730","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:3731","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2019:2028","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2020:0542","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2020:0591","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2020:0663","source":"cve@mitre.org"},{"url":"https://github.com/rubygems/rubygems/commit/666ef793cad42eed96f7aee1cdf77865db921099","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/rubygems/rubygems/commit/f83f911e19e27cbac1ccce7471d96642241dd759","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3621-1/","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4219","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4259","source":"cve@mitre.org"},{"url":"http://blog.rubygems.org/2018/02/15/2.7.6-released.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3729","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3730","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3731","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:2028","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2020:0542","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2020:0591","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2020:0663","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/rubygems/rubygems/commit/666ef793cad42eed96f7aee1cdf77865db921099","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/rubygems/rubygems/commit/f83f911e19e27cbac1ccce7471d96642241dd759","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3621-1/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4219","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4259","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000079","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}